The motion of fluids, especially noncompressible liquids, under the influence of internal and external forces.
An activity in which the body is propelled through water by specific movement of the arms and/or the legs. Swimming as propulsion through water by the movement of limbs, tail, or fins of animals is often studied as a form of PHYSICAL EXERTION or endurance.
The flow of water in enviromental bodies of water such as rivers, oceans, water supplies, aquariums, etc. It includes currents, tides, and waves.
The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilatancy, liquefaction, resistance to flow, shearing, thixotrophy, and VISCOSITY.
The properties, processes, and behavior of biological systems under the action of mechanical forces.
The entities of matter and energy, and the processes, principles, properties, and relationships describing their nature and interactions.
The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The resistance that a gaseous or liquid system offers to flow when it is subjected to shear stress. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A group of elongate elasmobranchs. Sharks are mostly marine fish, with certain species large and voracious.
The storing or preserving of video signals for television to be played back later via a transmitter or receiver. Recordings may be made on magnetic tape or discs (VIDEODISC RECORDING).
An increase in the rate of speed.
The most diversified of all fish orders and the largest vertebrate order. It includes many of the commonly known fish such as porgies, croakers, sunfishes, dolphin fish, mackerels, TUNA, etc.
Surface resistance to the relative motion of one body against the rubbing, sliding, rolling, or flowing of another with which it is in contact.
Manometric pressure of the CEREBROSPINAL FLUID as measured by lumbar, cerebroventricular, or cisternal puncture. Within the cranial cavity it is called INTRACRANIAL PRESSURE.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
A hard, brittle, grayish-white rare earth metal with an atomic symbol Ru, atomic number 44, and atomic weight 101.07. It is used as a catalyst and hardener for PLATINUM and PALLADIUM.
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Innate response elicited by sensory stimuli associated with a threatening situation, or actual confrontation with an enemy.
Movement or the ability to move from one place or another. It can refer to humans, vertebrate or invertebrate animals, and microorganisms.
The study of PHYSICAL PHENOMENA and PHYSICAL PROCESSES as applied to living things.
Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).
The physical characteristics and processes of biological systems.
Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.
Pressure within the cranial cavity. It is influenced by brain mass, the circulatory system, CSF dynamics, and skull rigidity.
Computer-based representation of physical systems and phenomena such as chemical processes.
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The tendency of a gas or solute to pass from a point of higher pressure or concentration to a point of lower pressure or concentration and to distribute itself throughout the available space. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT.
Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.
Peculiarities associated with the internal structure, form, topology, or architecture of organisms that distinguishes them from others of the same species or group.
A rating of a body of water based on measurable physical, chemical, and biological characteristics.
Environments or habitats at the interface between truly terrestrial ecosystems and truly aquatic systems making them different from each yet highly dependent on both. Adaptations to low soil oxygen characterize many wetland species.
That segment of commercial enterprise devoted to the design, development, and manufacture of chemical products for use in the diagnosis and treatment of disease, disability, or other dysfunction, or to improve function.
The personal cost of acute or chronic disease. The cost to the patient may be an economic, social, or psychological cost or personal loss to self, family, or immediate community. The cost of illness may be reflected in absenteeism, productivity, response to treatment, peace of mind, or QUALITY OF LIFE. It differs from HEALTH CARE COSTS, meaning the societal cost of providing services related to the delivery of health care, rather than personal impact on individuals.
The amounts spent by individuals, groups, nations, or private or public organizations for total health care and/or its various components. These amounts may or may not be equivalent to the actual costs (HEALTH CARE COSTS) and may or may not be shared among the patient, insurers, and/or employers.
Thick triangular muscle in the SHOULDER whose function is to abduct, flex, and extend the arm. It is a common site of INTRAMUSCULAR INJECTIONS.
Occupations of medical personnel who are not physicians, and are qualified by special training and, frequently, by licensure to work in supporting roles in the health care field. These occupations include, but are not limited to, medical technology, physical therapy, physician assistant, etc.
The movement of materials (including biochemical substances and drugs) through a biological system at the cellular level. The transport can be across cell membranes and epithelial layers. It also can occur within intracellular compartments and extracellular compartments.
Water containing no significant amounts of salts, such as water from RIVERS and LAKES.
Contamination of bodies of water (such as LAKES; RIVERS; SEAS; and GROUNDWATER.)
The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.
Large aggregates of CELESTIAL STARS; COSMIC DUST; and gas. (From McGraw Hill Dictionary of Scientific and Technical Terms, 6th ed)
Facilities equipped to carry out investigative procedures.
The science concerned with celestial bodies and the observation and interpretation of the radiation received in the vicinity of the earth from the component parts of the universe (McGraw Hill Dictionary of Scientific and Technical Terms, 5th ed)
Aggregates of matter in outer space, such as stars, planets, comets, etc. and the properties and processes they undergo.
A constituent organization of the DEPARTMENT OF HEALTH AND HUMAN SERVICES concerned with protecting and improving the health of the nation.
RNA which does not code for protein but has some enzymatic, structural or regulatory function. Although ribosomal RNA (RNA, RIBOSOMAL) and transfer RNA (RNA, TRANSFER) are also untranslated RNAs they are not included in this scope.

Alveolar duct expansion greatly enhances aerosol deposition: a three-dimensional computational fluid dynamics study. (1/494)

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Quantitative analysis of single bacterial chemotaxis using a linear concentration gradient microchannel. (2/494)

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CFD simulation of contaminant decay for high reynolds flow in a controlled environment. (3/494)

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Passive microfluidic pumping using coupled capillary/evaporation effects. (4/494)

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Fluid dynamics of cytotoxic safety cabinets. (5/494)

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Mechanical properties of primary cilia regulate the response to fluid flow. (6/494)

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Determination of a setup correction function to obtain adsorption kinetic data at stagnation point flow conditions. (7/494)

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Using hyperbolic Lagrangian coherent structures to investigate vortices in bioinspired fluid flows. (8/494)

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TY - GEN. T1 - Computational fluid dynamics analysis of the effect of simulated plaques in the left coronary artery. T2 - A preliminary study. AU - Chaichana, Thanapong. AU - Jewkes, James. AU - Sun, Zhonghua. PY - 2011. Y1 - 2011. N2 - Background: Atherosclerosis is the most common cause of coronary artery disease which is formed by plaque presence inside the artery wall leading to blockage of the blood supply to the heart muscle. The mechanism of atherosclerotic development is dependent on the blood flow variations in the artery wall during cardiac cycles. Characterization of plaque components and investigation of the plaques with subsequent coronary artery stenosis and myocardial dysfunction has been extensively studied in the literature. However, little is known about the effect of plaques on hemodynamic changes to the coronary artery, to the best of our knowledge. Investigation of the position of plaques in the coronary artery and its corresponding regional hemodynamic effects will provide ...
Longitudinal computational fluid dynamics study of aneurysmal dilatation in a chronic DeBakey type III aortic dissection Academic Article ...
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Computational performance of a smoothed particle hydrodynamics simulation for shared-memory parallel computingComputational performance of a smoothed particle hydrodynamics simulation for shared-memory parallel computing ...
The internal structure of aerobic granules has a significant impact on the hydrodynamic performance and mass transfer process, and severely affects the efficiency and stability of granules-based reactors for wastewater treatment. In this study, for the first time the granule complex structure was correlated with the hydrodynamic performance and substrates reactions process. First, a series of multiple fluorescence stained confocal laser scanning microscopy images of aerobic granules were obtained. Then, the form and structure of the entire granule was reconstructed. A three-dimensional computational fluid dynamics study was carried out for the hydrodynamic analysis. Two different models were developed on the basis of different fluorescence stained confocal laser scanning microscopy images to elucidate the roles of the granule structure in the hydrodynamic and mass transfer processes of aerobic granules. The fluid flow behavior, such as the velocity profiles, the pathlines and hence the ...
PADTs Computational Fluid Dynamics (CFD) engineers use the worlds leading software tools for CFD simulation. Phoenix Analysis & Design Technology (PADT) :: Tempe Arizona, Littleton Colorado
TY - JOUR. T1 - A Broad Range of Dose Optima Achieve High-level, Long-term Gene Expression After Hydrodynamic Delivery of Sleeping Beauty Transposons Using Hyperactive SB100x Transposase. AU - Podetz-Pedersen, Kelly M.. AU - Olson, Erik R.. AU - Somia, Nikunj V.. AU - Russell, Stephen J.. AU - McIvor, R. Scott. PY - 2016. Y1 - 2016. N2 - The Sleeping Beauty (SB) transposon system has been shown to enable long-term gene expression by integrating new sequences into host cell chromosomes. We found that the recently reported SB100x hyperactive transposase conferred a surprisingly high level of long-term expression after hydrodynamic delivery of luciferase-encoding reporter transposons in the mouse. We conducted dose-ranging studies to determine the effect of varying the amount of SB100x transposase-encoding plasmid (pCMV-SB100x) at a set dose of luciferase transposon and of varying the amount of transposon-encoding DNA at a set dose of pCMV-SB100x in hydrodynamically injected mice. Animals were ...
In this paper, the smoothed particle hydrodynamics (SPH) is applied to simulate the high explosive (HE) explosion which consists of detonation and dispersion process. The combination of meshless and Lagrangian nature inherent in the SPH methodology avoids the disadvantages of traditional numerical methods in treating large deformations, large inhomogeneities and tracing free surfaces in the extremely transient explosion process. Four numerical examples are presented with comparisons from different sources. The presented numerical examples involve in various HE explosion scenarios of arbitrary charge shape and different detonation orientations. The simulation results show that the presented SPH methodology can give good prediction for both the magnitude and form of the detonation wave as well as the pressure transient in the explosion process. Major physics of the HE explosion can be well captured in the simulation. © 2002 Elsevier Science Ltd. All rights reserved ...
This thesis presents the formulation of a Smoothed Particle Hydrodynamics (SPH) model and its application to a range of engineering applications. The motivation for this research lies in the desire to accurately model viscous and turbulent free-surface flows, including those with complete break-up of the free-surface. At present, boundary element modelling is typically chosen to describe free-surface flows where viscous effects are not important. The Volume of Fluid method is able to model most flow phenomena, but the representation of the free-surface is insuffcient for the most complex flows. Current SPH models have shown aptitude for modelling such flows, but there is a noticeable lack of validation carried out in the literature. This thesis includes a thorough investigation into established modelling techniques, extending or developing new techniques where necessary, in order to create a versatile and accurate SPH model for free-surface flows. Where possible, quantitative comparisons with ...
Artificial viscosity is needed in Smooth Particle Hydrodynamics to prevent interparticle penetration, to allow shocks to form and to damp post shock oscillations. Artificial viscosity may, however, lead to problems such as unwanted heating and unphysical. ...
In this study, we investigate plaques located at the left coronary bifurcation. We focus on the effect that the resulting changes in wall shear stress (WSS) and wall pressure stress gradient (WPSG) have on atherosclerotic progress in coronary artery disease. Coronary plaques were simulated and placed at the left main stem and the left anterior descending to produce ,50% narrowing of the coronary lumen. Computational fluid dynamics analysis was carried out, simulating realistic physiological conditions that show the in vivo cardiac haemodynamic. WSS and WPSG in the left coronary artery were calculated and compared in the left coronary models, with and without the presence of plaques during cardiac cycles. Our results showed that WSS decreased while WPSG was increased in coronary side branches due to the presence of plaques. There is a direct correlation between coronary plaques and subsequent WSS and WPSG variations based on the bifurcation plaques simulated in the realistic coronary ...
Modeling the complex interactions between biochemical reactions and hydrodynamics is the key to optimize biofiltration systems performance. In this work, biological kinetics expressions were implemented into Computational Fluid Dynamics (CFD) model as transport equations, including convective and diffusive terms. Previously, activity within the biofilm of a flat plate bioreactor (FPB) was experimentally investigated measuring dissolved oxygen (DO) profiles by means of microsensors and under common operating conditions. Moreover, a mathematical model to describe mass transport and metabolic activity in the FPB was developed and their parameters were fitted from experimental results. Then, a CFD model, combining hydrodynamics and biochemical reactions, was developed and solved to simulate local transient flow and dynamic behaviors of biofilm growth and substrate (glucose) biodregradation in the FPB. The CFD simulation results were evaluated by studying hydrodynamics characterization in the FPB and ...
Computational Fluid Dynamics - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This intense course provides a working understanding of Computational Fluid Dynamics (CFD) and an overview of best practices. It is designed to provide the engineer with basic knowledge to apply CFD, identify and solve real life applications. This course creates an awareness of the potentials and limitations of this technology. The engineer will be exposed to a wide range of applications and the course offers high benefits to those who have little or no exposure to CFD. This course offers engineers involved in CFD an opportunity to sample the wide range of applications that can be solved using CFD methods.
SUMMARY: Image-based computational fluid dynamics holds a prominent position in the evaluation of intracranial aneurysms, especially as a promising tool to stratify rupture risk. Current computational fluid dynamics findings correlating both high and low wall shear stress with intracranial aneurysm growth and rupture puzzle researchers and clinicians alike. These conflicting findings may stem from inconsistent parameter definitions, small datasets, and intrinsic complexities in intracranial aneurysm growth and rupture. In Part 1 of this 2-part review, we proposed a unifying hypothesis: both high and low wall shear stress drive intracranial aneurysm growth and rupture through mural cell-mediated and inflammatory cell-mediated destructive remodeling pathways, respectively. In the present report, Part 2, we delineate different wall shear stress parameter definitions and survey recent computational fluid dynamics studies, in light of this mechanistic heterogeneity. In the future, we expect that ...
Two-dimensional in-cylinder velocity distributions measured with Particle Image Velocimetry were compared with computed results from Computational Fluid Dynamics codes. A high-swirl, two-valve, four-stroke transparent-combustion-chamber research engine was used. Comparisons were made of mean-flow velocity distributions, swirl-ratio evolution during the intake and compression strokes, and turbulence distributions at top-dead-center compression. This comparison with the measured flows led to more accurate calculations by identifying code improvements including swirl in the residual gas, modeling of the gas exchange during the valve overlap, and improved numerical accuracy ...
Radiation Hydrodynamics (RHD) is essentially normal Hydrodynamics plus the effects of Radiative Transfer (RT). When modeling a physical entity (e.g., a star or cloud), Electromagnetic Radiation (EMR) may or may not significantly affect the result, presenting the question of whether to include the complication of radiative transfer. Much hydrodynamic Code in astrophysics does also include effects of EMR. Note that RHD is also sometimes used for Relativistic Hydrodynamics, i.e., hydrodynamics including the effects of relativity. ...
Membrane fouling is one of the most investigated topics in the field of membrane processes because it is the main weakness that prevents membrane bioreactors (MBRs) from being widely applied. With a view to reducing membrane fouling, all the phenomena involved in the operation are worth understanding through a fine-tuned and deep examination. In the present paper, the study focused on the hydrodynamics in an air-lift MBR with a flat sheet membrane, taking into account the application of a specific method for biofouling mitigation adding free moving particles in addition of bubbles injection. The application of this technique creates a complex three-phase gas-liquid-solid contactor in the MBR in terms of hydrodynamics. Therefore, the main objective of this work was to properly characterize, using a Particle Image Velocimetry (PIV) technique, such a system in order to clarify the potential effect of the addition of free moving solid particle on the hydrodynamics and the performances of the MBR. ...
Hydrodynamics is a subset of fluid dynamics which studies liquids that are at rest or in motion. Fluid mechanics has been around for thousands of years. Archimedes made the first known contributions with his invention of the screw pump. The ancient Romans developed extensive hydraulic machines and devices by using Archimedes screw pump and mine pumping system.. Major developments in hydrodynamics did not start to happen until Sir Isaac Newton formulated the laws of motion. Leonhard Euler applied these laws to fluids. He recognized that dynamic laws for fluids could only be expressed with relatively simple forms. The effects of friction or viscosity had to be neglected. Thus, the results of his analysis were only an estimate.. Today, we have a series of equations to explain the properties of liquids through the conservation laws of mass, energy and momentum. Hydrodynamics is largely used to explain flow through pipes and various obstacles, such as dams. It is also used to predict the flow ...
Computational Fluid Dynamics Working Group Members Companies represented on the NAFEMS Computational Fluid Dynamics Working Group are listed below. NAFEMS Members can access details of the individual Working Group members (you must be logged in to access these details) Abercus ac&e Airbus ANSYS Inc. Boeing Cambridge Consultants Cambridge Flow Solutions Caspus CD-adapco, a Siemens Business ESI Group FLUIDS & C O Ford Motor
TY - CONF. T1 - Towards an in-vitro multi-cellular human airways model for evaluating the effects of Electronic cigarettes. AU - Vasanthi Bathri Narayanan, Pranav. AU - Leslie, Laura J.. AU - Brown, James E.. AU - Marshall, Lindsay J.. PY - 2016. Y1 - 2016. N2 - Despite being poor representations of human airways architecture, innumerable animals, especially rodents, have been used in cigarette smoking studies. The advent of Electronic-cigarettes (ECs) could herald a further escalation, with data from in-vivo experiments already increasingly published. The current study aims to demonstrate the application of a human in-vitro model for evaluation of EC, providing alternatives to the outdated in-vivo models. The human airways model consists of relevant cell types that would be directly encountered during vaping. Human bronchial epithelial cells and pulmonary fibroblasts were co-cultured at air-liquid interface (ALI) under conditions that promote mucociliary differentiation, tight junction ...
Essentials of Fluid Mechanics for Computational Fluid Dynamics (CFD) NAFEMS e-Learning Course Four-Week Online Training Course - one 2-hour session per week Course Overview Fluid mechanics is the study of fluids (gases and liquids) either in motion or at rest and it is divided to two main disciplines: fluid statics (fluids at rest) and fluid dynamics (fluid in motion). There are three major but complimentary branches making up the field of fluid dynam
If you have a question about this talk, please contact Vanessa Blake.. Liquid mixing and blending is an important operation before packaging a many fluid product. The blending or mixing process should be cheap and efficient and at the same time result in high product quality in terms of consistency. In order to achieve this goal experimentally one needs to perform many trials involving changes in the motion and geometric dimensions of the packaging container as well as product ratios of the fluid that is being blended together. Simulation can be used as an efficient tool to reduce the number of such experimental trials and/or optimise the system once a reasonable solution is obtained from the experimental trials.. There are three principle issues that arise while modelling such systems which can lead to difficulties for traditional grid-based CFD methods:. ...
This thesis outlines adaptivity schemes for particle-based methods for the simulation of nearly incompressible fluid flows. As with the remeshing schemes used in mesh and grid-based methods, there is a need to use localized refinement in particle methods to reduce computational costs. Various forms of particle refinement have been proposed for particle-based methods such as Smoothed Particle Hydrodynamics (SPH). However, none of the techniques that exist currently are able to retain the original degree of randomness among particles. Existing methods reinitialize particle positions on a regular grid. Using such a method for region localized refinement can lead to discontinuities at the interfaces between refined and unrefined particle domains. In turn, this can produce inaccurate results or solution divergence. This thesis outlines the development of new localized refinement algorithms that are capable of retaining the initial randomness of the particles, thus eliminating transition zone ...
Secondly, my lecture notes from the school have now been written up as a review paper on SPH and SPMHD to be published in the Journal of Computational Physics ...
MATERIALS AND METHODS: The hemodynamics in 18 completely occluded aneurysms after treatment with intrasaccular devices was compared against 18 that were incompletely occluded at follow-up. Hemodynamic and geometric parameters were obtained from computational fluid dynamics models constructed from 3D angiographies. Models of the intrasaccular devices were created and interactively deployed within the vascular models using posttreatment angiography images for guidance. Hemodynamic and geometric variables were compared using the Mann-Whitney test and univariate logistic regression analysis. ...
Apart from partial or total joint replacement, no surgical procedure is currently available to treat large and deep cartilage defects associated with advanced diseases such as osteoarthritis. In this work, we developed a perfusion bioreactor system to engineer human cartilage grafts in a size with clinical relevance for unicompartmental resurfacing of human knee joints (50 mm diameter x 3 mm thick). Computational fluid dynamics models were developed to optimize the flow profile when designing the perfusion chamber. Using the developed system, human chondrocytes could be seeded throughout large 50 mm diameter scaffolds with a uniform distribution. Following two weeks culture, tissues grown in the bioreactor were viable and homogeneously cartilaginous, with biomechanical properties approaching those of native cartilage. In contrast, tissues generated by conventional manual production procedures were highly inhomogeneous and contained large necrotic regions. The unprecedented engineering of human ...
Abdulbari, Hayder A. and Kwaire, Asawer A. and Falih, Hussain M. (2009) Modelling of Three Phase System with Non-Newtonian Liquid Using Computational Fluid Dynamics Model. Asian Journal of Industrial Engineering, 1 (1). pp. 12-20. ISSN 1996-3386 ...
Fluid shear stress is an important factor to consider when studying the behavior of endothelial cells in vascular system. The main focus of this study is to relate the spatial and temporal variations in shear stress with the extent of oxidative stress, specifically in arterial branching points in comparison with straight regions in the vessels. For this purpose, a micro shear stress sensor has been designed and fabricated with the backside wire binding feature. The sensors were flush mounted in a 3-D scaled up model of carotid arterial bifurcation to measure the spatial variations in shear stress. These measurements were validated by computational fluid dynamics simulations. Arteries with complex geometries develop a low profile and bidirectional type of shear stress, namely oscillatory however unidirectional and high profile of shear stress, namely pulsatile shear stress develops at straight regions of the vessels. We compared the extent of oxidative stress for the endothelial cells which were ...
Contribute specialized field data analysis and ancillary modeling to provide inputs to hydrodynamic models. Incumbent will use Python scripts to manipulate field data time series and to produce boundary condition fields for hydrodynamic modeling; use ArcGIS to develop post-processing workflows and will develop automation scripts to produce Digital Elevation Models (DEMs) and other project products; and calibrate ancillary bathymetric models, perform error checking and uncertainty analysis. In addition to Python and ArcGIS, bathymetric grid generation software such as Janet and Delft DFlowFM will be used to generate hydrodynamic model inputs. Serve as a research coordinator for tidal hydrodynamic projects conducted by PIs in the Center for Watershed Sciences. By using specialized expertise on tidal hydrodynamics, responsible for ensuring uninterrupted communication between laboratory, data management and modeling. Project functions and project output functions including preparation of reports, ...
0.6-1.9% of US children were born with congenital heart malformations. Clinical and animal studies suggests that abnormal blood flow forces might play a role in causing these malformation, highlighting the importance of understanding the fetal cardiovascular fluid mechanics. We performed Computational Fluid Dynamics simulations of the right ventricles, based on 4D ultrasound scans of three 20 weeks old normal human foetuses, to characterize their flow and energy dynamics. Peak intraventricular pressure gradients were found to be 0.2-0.9 mmHg during systole, and 0.1-0.2 mmHg during diastole. And diastolic wall shear stresses were found to be around 1Pa, which could elevate to 2-4Pa during systole in the outflow tract. Fetal right ventricles have complex flow patterns featuring two interacting diastolic vortex rings, formed during diastolic E-wave and A-wave. These rings persisted through the end of systole and elevated wall shear stresses in their proximity. They were observed to conserve ...
A study, published in Physics of Fluids, reports on the mechanisms of coughing and airborne transmission of viruses.. Dr Philippe Trinh, Lecturer in Applied Mathematics at the University of Bath (with input from Dr Kit Yates and Professor Paul Milewski, both from the Department of Mathematical Sciences), said:. The publication by Dbouk and Drikakis, titled On coughing and airborne droplet transmission to humans, and published today (19 May 2020) performs a computational fluid dynamics simulation of the coughing process, essentially in order to determine the extent or distance in which saliva droplets are transmitted. This is published in a world-leading peer-reviewed journal in fluid dynamics. The authors are clear about the models, parameters, and assumptions they have used-however, we should acknowledge that, like many computational experiments that reach this degree of sophistication, reproducing the results and checking the assumptions requires some effort.. In essence, their conclusions ...
Welcome to the First World Congress on CFD (Computational Fluid Dynamics) of the Nose & Airway.. In recent years there has been an explosion in interest in the field of CFD of the Nose and Airway. The time has come for researchers in Engineering and Healthcare to convene and explore the frontiers of this exciting new field.. In our packed one-day program, we will discuss the Engineering/ technical aspects of CFD simulation, along with practical clinical applications of the results. Our Faculty consists of leading innovators from across the globe, whose knowledge and insights will appeal to experienced researchers, novices entering the field, and interested observers alike.. The conference will be held in conjunction with the Eurpean Rhinological Society Meeting, in the spectacular city of London, against the stunning backdrop of the Thames river, London Bridge, Tower Bridge and The Shard.. We look forward to the pleasure of your company in London on April 22nd, 2018.. ...
Army SBIR 12.2 Topic Descriptions. A12-075 TITLE: Numerical Model of Variable Surface Roughnesses for Parasite Drag Estimation. TECHNOLOGY AREAS: Air Platform. ACQUISITION PROGRAM: PEO Aviation. The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material and services. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the solicitation.. OBJECTIVE: To develop a numerical model for variable surface roughness distributions that can be implemented into computational fluid dynamics simulations for the estimation of the parasite drag of an aircraft.. DESCRIPTION: Surface roughness can be a significant contributor to the drag of an immersed body such as an aircraft [1]. Current Army aircraft can employ a number of materials, paints and protective coatings ...
The book provides a lively and approachable introduction to the main concepts and techniques of relativistic hydrodynamics in a form which will appeal to physicists at advanced undergraduate and postgraduate levels. The book is divided into three parts. The first part deals with the physical aspects of relativistic hydrodynamics, touching on fundamental topics such as kinetic theory, equations of state, mathematical aspects of hyperbolic partial differential equations, linear and nonlinear waves in fluids, reaction fronts, and the treatment of non-ideal fluids. The second part provides an introductory but complete description of those numerical methods currently adopted in the solution of the relativistic-hydrodynamic equations. Starting from traditional finite-difference methods, modern high-resolution shock-capturing methods are discussed with special emphasis on Godunov upwind schemes based on Riemann solvers. High-order schemes are also treated, focusing on essentially non-oscillatory and weighted
TY - JOUR. T1 - Local wall shear stress variations predicted by computational fluid dynamics for hygienic design. AU - Jensen, Bo Boye Busk. AU - Friis, Alan. AU - Benezech, Thierry. AU - Legentilhomme, Patrick. AU - Lelievre, Caroline. PY - 2005. Y1 - 2005. M3 - Journal article. VL - 83. SP - 53. EP - 60. JO - Food and Bioproducts Processing. JF - Food and Bioproducts Processing. SN - 0960-3085. IS - C1. ER - ...
A rather complete mathematical model for a common-rail injection-system dynamics numerical simulation was developed to support experimentation, layout, and control design, as well as performance optimization. The thermofluid dynamics of the hydraulic-system components, including rail, connecting pipes, and injectors was modeled in conjunction with the solenoid-circuit electromagnetics and the mechanics of mobile elements. One-dimensional flow equations in conservation form were used to simulate wave propagation phenomena throughout the high-pressure connecting pipes, including the feeding pipe of the injector nozzle. In order to simulate the temperature variations due to the fuel compressibility, the energy equation was used in addition to mass conservation and momentum balance equations. Besides, the possible cavitation phenomenon effects on the mass flow rate through the injector bleed orifice and the nozzle holes were taken into account. A simple model of the electromagnetic driving circuit ...
Non-invasive patient-specific cardiovascular fluid dynamics Comprehensive characterization and quantification of blood flow is essential for understanding the function of the cardiovascular system under normal and diseased conditions. This provides important information not only for the diagnosis and treatment planning of different cardiovascular diseases but also for the design of cardiovascular devices. However, the anatomical complexity and multidirectional nature of physiological and pathological hemodynamics makes non-invasive characterization and quantification of blood flow difficult and challenging. Doppler ultrasound, a standard imaging technique, is limited to providing information on large vessels and calculating instantaneous average flow within the cardiac cycle. Magnetic resonance imaging (MRI) is increasingly being used for fluid dynamics analyses of cardiovascular diseases, including pulmonary arterial hypertension, portal hypertension and congenital heart diseases. Although ...
This introduction will give you a high-level overview of Computational Fluid Dynamics (CFD). We will therefore leave out most of the fine-print and concentrate on broad concepts assuming little or no familiarity with fluid mechanics. The introduction is intended for people who do not run simulations themselves, but do require some basic understanding of the topic especially with regard to its application in industrial environments.
Steel catenary risers, (SCR) usually installed between seabed wellhead and floating platform are subjected to vortex shedding. These impose direct forces, hence cyclic stresses, and fatigue damage on the SCR. Riser failure has both economic and environmental consequences; hence the design life is usually greater than the field life, which is significantly reduced by vortex induced vibration (VIV). In this study, SCR and metOcean data from a field in Offshore Nigeria were substituted into linearized hydrodynamic models for simulations. The results showed that the hang off and touchdown regions were most susceptible to fatigue failure. Further analysis using Miner-Palm green models revealed that the fatigue life reduced from a design value of 20-years to 17.04-years, shortened by 2.96-years due to VIV. Furthermore, a maximum wave load of 5.154 kN was observed. The wave loads results corroborated with those obtained from finite element Orca Flex software, yielding a correlation coefficient of 0.975.
With the increased availability of computational resources, the past decade has seen a rise in the use of computational fluid dynamics (CFD) for medical applications. There has been an increase in the application of CFD to attempt to predict the rupture of intracranial aneurysms, however, while many hemodynamic parameters can be obtained from these computations, to date, no consistent methodology for the prediction of the rupture has been identified. One particular challenge to CFD is that many factors contribute to its accuracy; the mesh resolution and spatial/temporal discretization can alone contribute to a variation in accuracy. This failure to identify the importance of these factors and identify a methodology for the prediction of ruptures has limited the acceptance of CFD among physicians for rupture prediction. The International CFD Rupture Challenge 2013 seeks to comment on the sensitivity of these various CFD assumptions to predict the rupture by undertaking a comparison of the rupture ...
Free Online Library: Computational fluid dynamics (CFD) analysis and numerical aerodynamic investigations of automotive disc brake rotor. by Australian Journal of Mechanical Engineering; Engineering and manufacturing Aerodynamics Investigations Control systems Usage Energy (Physics) Force and energy
Article Computational fluid dynamics modeling of contaminant mixing at junctions for an online security management toolkit in water distribution networks. The accurate modeling and simulation of the spread of contaminants within water distribution ne...
Conference Overview. After the immense success of the first conference chaired by Prof. David Elad (Tel Aviv University) in 2012, the 2nd International Conference on CFD in Medicine & Biology will take place in Algarve, Portugal (29.08.-04.09.2015).. With ongoing advances in both software and hardware development, including the huge increase in computers speed and memory, computational fluid dynamics (CFD) are playing an increasing role in simulating complex transport phenomena in medicine and biology. As a result, medical, bioengineering and pharmaceutical research, both academic and industrial have been utilizing the advantages of CFD tools to plan sophisticated and specialized multi-physics models. The benefits of these numerical approaches have allowed to gain deeper insight into many physical and biological phenomena and provided an excellent tool for predicting performance of devices during the design phase. In many applications, the virtual capacity of CFD is replacing experimental work ...
In this paper we consider the numerical solution of the three-dimensional fluid-structure interaction problem in haemodynamics, in the case of real geometries, physiological data and finite elasticity vessel deformations. We study some new inexact schemes, obtained from semi-implicit approximations, which treat exactly the physical interface conditions while performing just one or few iterations for the management of the interface position and of the fluid and structure non-linearities. We show that such schemes allow to improve the efficiency while preserving the accuracy of the related exact (implicit) scheme. To do this we consider both a simple analytical test case and two real cases of clinical interest in haemodynamics. We also provide an error analysis for a simple differential model problem when a BDF method is considered for the time discretization and only few Newton iterations are performed at each temporal instant.. Keywords: Fluid-structure Interaction ; finite elasticity ; Robin ...
A main research field is the development, analysis, improvement and application of numerical methods for equations coming from CFD. These methods are based on finite element or finite volume methods as spatial discretization and implicit temporal discretizations.. Convection-diffusion-reaction equations model, for instance, transport processes which are driven by diffusion or convection. A challenging situation from the point of view of simulations is the c ase of dominant convection, because the solution has scales which cannot be resolved by the used grids (layers). Standard stabilized methods lead to smeared discrete solutions or to solutions possessing spurious oscillations. Spurious oscillations are not acceptable in many applications. On research topic is the development of oscillation-free numerical methods for convection-dominated equations. In addition, numerical methods for nonlinear transport equations with exponential nonlinearities are developed and analyzed.. The Navier--Stokes ...
Hubert CHANSON is a Professor in Civil Engineering, Hydraulic Engineering and Applied Fluid Mechanics, at the University of Queeensland, Australia. His research interests include design of hydraulic structures, experimental investigations of two-phase flows, coastal hydrodynamics, water quality modelling, environmental management and natural resources. He has been an active consultant for both governmental agencies and private organisations. His publication record includes over 550 international refereed papers and his work was cited over 2,700 times since 1990. Hubert Chanson is the author of several books : Hydraulic Design of Stepped Cascades, Channels, Weirs and Spillways (Pergamon, 1995), Air Bubble Entrainment in Free-Surface Turbulent Shear Flows (Academic Press, 1997), The Hydraulics of Open Channel Flow : An Introduction (Butterworth-Heinemann, 1st edition 1999, 2nd editon 2004), The Hydraulics of Stepped Chutes and Spillways (Balkema, 2001), Environmental Hydraulics of Open ...
Smooth Particle Applied Mechanics (SPAM) and Smoothed Particle Hydrodynamics (SPH) are numerical methods for solving the equations of continuum mechanics (the continuity equation, the equation of motion, and the energy equation) with particles. This approach was originated by independently by Lucy [1] and by Gingold and Monaghan [2] in 1977 for astrophysical applications, and has since been applied to many challenging problems in fluid and solid mechanics. The main advantage of smooth-particle methods is that the partial differential equations (continuity, motion, energy) are replaced by ordinary differential equations (like molecular dynamics) describing the motion of particles. The particles can be of any size, from the microscopic to the astrophysical, and can obey any chosen constitutive equation. The main disadvantages are the difficulties in treating sharp surfaces or interfaces with discrete particles and in avoiding the instabilities that can result for materials under tension. Some ...
We analyze the performances of two types of Luenberger observers -- namely, the so-called Direct Velocity Feedback and Schur Displacement Feedback procedures, originally devised for elasto-dynamics -- to estimate the state of a fluid-structure interaction model for hemodynamics, when the measurements are assumed to be restricted to displacements or velocities in the solid. We first assess the observers using hemodynamics-inspired test problems with the complete model, including the Navier-Stokes equations in Arbitrary Lagrangian-Eulerian formulation, in particular. Then, in order to obtain more detailed insight we consider several well-chosen simplified models, each of which allowing a thorough analysis -- emphasizing spectral considerations -- while illustrating a major phenomenon of interest for the observer performance, namely, the added mass effect for the structure, the coupling with a lumped-parameter boundary condition model for the fluid flow, and the fluid dynamics effect per se. Whereas
This article revisits the topic of hydrodynamics, at a larger scale, in order to give readers background understanding on the big picture of water movement.
Posted: Monday 2nd November 2015 A radical way to improve the performance of submerged aerated filter (SAF) package wastewater systems has been unveiled at a leading industry event. Engineering manager Tim Holloway, of WPL discovered how to make SAF systems more efficient when researching hydrodynamics. He presented his research to delegates at the European Waste Water Management Conference at Manchester Town Hall on 13 October 2015. Holloway said: Submerged aerated filter or SAF systems have been around for a long time. But until now we knew very little about the hydrodynamics going on inside. My findings suggest the removal of organic contaminants can be improved by as much as 20 per cent by adjusting the ratio of media to wastewater inside the tank. In order to measure the hydrodynamics of SAF systems Holloway used fluorescent dye to measure how pressure, flow and the ratio of media to wastewater affected the way contaminants were removed. He said: No one has looked at the process in this ...
Flow hydrodynamics in open cycle designs[edit]. The shape of the fissile gas core can be either cylindrical, toroidal, or ... is through flow hydrodynamics. Another problem is that the radioactive efflux from the nozzle makes the design totally ...
Hydrodynamics. Cambridge university press, 1932. Shu, Jian-Jun; Chwang, A.T. (2001). "Generalized fundamental solutions for ...
Hydrodynamics. - Movement of fluids, movement of water in tubes and open channels, movement of gas in pipes, steam pipes, ...
"Hydrodynamics". See Batchelor (1967), §3.5, p. 160. Weisstein, Eric W. "Convective Derivative". MathWorld. Batchelor (1967) p. ... Lamb in his famous classical book Hydrodynamics (1895), used this identity to change the convective term of the flow velocity ...
Hydrodynamics. Hydraulics. Navigation, Naval Architecture. Geometric Astronomy. Cosmography. Uranography. Geography. ...
Hydrodynamics. New York: Dover publications, 1956.. ...
Lamb, H. (1993). Hydrodynamics. Cambridge university press. pp. 91 Milne-Thomson, L. M. (1949). Theoretical hydrodynamics (Vol ...
Milne-Thomson, L. M. (1996). Theoretical hydrodynamics. Courier Corporation. Birkhoff, G. (2015). Hydrodynamics. Princeton ... It has several subdisciplines itself, including aerodynamics (the study of air and other gases in motion) and hydrodynamics ( ... For more complex cases, especially those involving turbulence, such as global weather systems, aerodynamics, hydrodynamics and ...
Lamb, H. (1993). Hydrodynamics. Cambridge university press. Batchelor, G. K. (1967). An introduction to fluid dynamics. Section ...
"Hydrodynamics". www.modelwarships.com. Retrieved 2017-02-25. T. Garth Connelly; David L. Krakow (2003). Schnellboot in Action. ... Saunders, Harold E. (1957). Hydrodynamics in ship design, Volume 1. Society of Naval Architects and Marine Engineers. p. 586. ...
Thomson, W. (1849). Notes on hydrodynamics. V. On the vis-viva of a liquid in motion. Camb. Dubl. Math. J, 4, 90-94. Kelvin, W ... Lamb, H. (1932). Hydrodynamics. Cambridge university press. Batchelor, G. K. (2000). An introduction to fluid dynamics. ...
Physicochemical Hydrodynamics. Chang, H.C., Yeo, L. (2009). Electrokinetically Driven Microfluidics and Nanofluidics. Cambridge ...
Mortimer, C. H. (January 1974). "Lake hydrodynamics". SIL Communications, 1953-1996. 20 (1): 124-197. doi:10.1080/05384680.1974 ...
CS1 maint: discouraged parameter (link) "Nick Newman Symposium on Marine Hydrodynamics". Archived from the original on 16 June ... John Nicholas Newman (1977). Marine hydrodynamics. Cambridge, Massachusetts: MIT Press. ISBN 0-262-14026-8. Newman, J. N. (1962 ... is an American naval architect noted for his contributions to marine hydrodynamics. Together with David Evans, he initiated the ...
Onsager, L. (March 1949). "Statistical hydrodynamics". Il Nuovo Cimento. 6 (S2): 279-287. doi:10.1007/BF02780991. ISSN 0029- ...
Newman, John Nicholas (1977). Marine hydrodynamics. Cambridge, Massachusetts: MIT Press. p. 28. ISBN 978-0-262-14026-3. Russel ...
The Theoretical Hydrodynamics published by Macmillan & Co. Ltd., London, appeared in 1938 and more material based on his own ... In the mid 1930s, Milne-Thomson developed an interest in hydrodynamics and later in aerodynamics. This led to publication of ... "Theoretical hydrodynamics (Open Library)". OL 804777M. Cite journal requires ,journal= (help) O'Connor, John J.; Robertson, ... ISBN 0-902-198-84-X. Ippen, A. T. (1941). "Review: Theoretical Hydrodynamics by L. M. Milne-Thomson" (PDF). Bull. Amer. Math. ...
Milne-Thomson, L. M. (1968). Theoretical Hydrodynamics. Hong Kong: Macmillan Education. p. 226. Wu, C. T.; Yang, F. L.; Young, ...
... hydrodynamics; marine engines, chemistry; and miscellaneous recipes. Adapted to and for the use of all classes of practical ...
ISBN 978-0-309-04689-3. "Benjamin Levich Institute for Physico-Chemical Hydrodynamics". City College of New York (CCNY). ... His landmark textbook titled Physicochemical Hydrodynamics is widely considered his most important contribution to science. The ... Levich, Veniamin G. (1962). Physicochemical Hydrodynamics. Englewood Cliffs, NJ: Prentice-Hall (english translation by Scripta ... electrochemist and founder of the discipline of physico-chemical hydrodynamics. He was a student of the theoretical physicist, ...
Newman, John Nicholas (1977). Marine hydrodynamics. Cambridge, Massachusetts: MIT Press. p. 28. ISBN 0-262-14026-8.. Watson, D ... Marchaj, C. A. (2000). Aero-Hydrodynamics of Sailing. Tiller Publishing. ISBN 1-888671-18-1.. ...
Marine hydrodynamics. Cambridge, Massachusetts: MIT Press. §4.13, p. 139. ISBN 978-0-262-14026-3. CS1 maint: discouraged ...
The term may be considered to be synonymous with the rather elaborate electrostrictive hydrodynamics. ESHD covers the following ... Levich, V.I. (1962). Physicochemical Hydrodynamics. Ferraro, P.; Coppola, S.; Grilli, S.; Paturzo, M.; Vespini, V. (2010). " ...
ISBN 978-0-19-975207-2. Guyon, Etienne; Hulin, Jean-Pierre; Petit, Luc; Mitescu, Catalin D. (2001). Physical Hydrodynamics. ... 467-476 Guyon, Etienne; Hulin, Jean-Pierre; Petit, Luc; Mitescu, Catalin D. (2001). Physical Hydrodynamics. Oxford University ...
Probstein, R. (1994). Physicochemical Hydrodynamics. Sparks, D. L. (1988). Kinetics of Soil Chemical Processes. Academic Press ...
Rezzolla, Luciano; Zanotti, Olindo (2013). Relativistic Hydrodynamics. Luciano Rezzolla at the Mathematics Genealogy Project ... "Relativistic Hydrodynamics", that is universally recognised as the standard reference on this topic. Rezzolla is an avid sailor ...
hydrodynamics simulations). GPU virtualization implementations generally involve one or more of the following techniques: ...
Onsager, L. (March 1949). "Statistical hydrodynamics". Il Nuovo Cimento. 6 (S2): 279-287. doi:10.1007/BF02780991. ISSN 0029- ...
Tidal Hydrodynamics. John Wiley and Sons, ISBN 978-0-471-51498-5 Accad, Y. & Pekeris, C.L. (November 28, 1978). "Solution of ...
Levich, V. G. (1962). Physicochemical hydrodynamics. Prentice hall. Ter Haar, D. (Ed.). (2013). Collected papers of LD Landau. ...
An important system of study in quantum hydrodynamics is that of superfluidity. Some other topics of interest in quantum ... In condensed matter physics, quantum hydrodynamics is most generally the study of hydrodynamic-like systems which demonstrate ... Many famous scientists have worked in quantum hydrodynamics, including Richard Feynman, Lev Landau, and Pyotr Kapitsa. ... Hydrodynamic quantum analogs Robert E. Wyatt: Quantum Dynamics with Trajectories: Introduction to Quantum Hydrodynamics ( ...
Entrainment is the transport of fluid across an interface between two bodies of fluid by a shear-induced turbulent flux. Entrainment is important in turbulent jets, plumes, and gravity currents and is a topic of current research. The entrainment hypothesis was first used as a model for flow in plumes by G. I. Taylor. He was studying the use of oil drum fires to clear fog from airplane runways during World War II. It became a common model of turbulence closure used in environmental and geophysical fluid mechanics. Eductors or eductor-jet pumps make use of entrainment. They are used onboard ships to pump out flooded compartments: seawater is pumped to the eductor and forced through a jet, and any fluid at the inlet of the eductor is carried along to the outlet and up and out of the compartment. Eductors can pump out whatever can flow through them, including water, oil, and small pieces of wood. Another example is the pump-jet, which is used for marine propulsion. Jet pumps are also used to ...
The smoothed-particle hydrodynamics (SPH) method works by dividing the fluid into a set of discrete moving elements i. ,. j. {\ ... Hydrodynamics[edit]. Weakly compressible approach[edit]. Another way to determine the density is based on the SPH smoothing ... Libersky, L.D.; Petschek, A.G. (1990). Smooth Particle Hydrodynamics with Strength of Materials, Advances in the Free Lagrange ... Smoothed-particle hydrodynamics (SPH) is a computational method used for simulating the mechanics of continuum media, such as ...
Our work demonstrates the anomalous landscape for electron hydrodynamics in systems beyond graphene, and presents experimental ... Varnavides, G., Jermyn, A.S., Anikeeva, P. et al. Electron hydrodynamics in anisotropic materials. Nat Commun 11, 4710 (2020). ... Link, J. M., Narozhny, B. N., Kiselev, E. I. & Schmalian, J. Out-of-bounds hydrodynamics in anisotropic dirac fluids. Phys. Rev ... Cook, C. Q. & Lucas, A. Electron hydrodynamics with a polygonal fermi surface. Phys. Rev. B 99, 235148 (2019). ...
caption]. Away in space some 4.57 billion years ago, in a galaxy yet to be called the Milky Way, a hydrogen molecular cloud collapsed. From it was born a G-type main sequence star and around it swirled a solar nebula which eventually gelled into a solar system. But just what caused the collapse of the molecular cloud? Astronomers have theorized it may have been triggered by a nearby supernova event… And now new computer modeling confirms that our Solar System was born from the ashes a dead star. While this may seem like a cold case file, there are still some very active clues - one of which is the study of isoptopes contained within the structure of meteorites. As we are well aware, many meteorites could very well be bits of our primordial solar nebula, left virtually untouched since they formed. This means their isotopic signature could spell out the conditions that existed within the molecular cloud at the time of its collapse. One strong factor in this composition is the amount of ...
... basic tolls and basic approximations of molecular hydrodynamics. Chapters 3 and 4 explore self-diffusion and space-dependent ...
We will pay special attention to Galilean hydrodynamics, and construct a relativistic system which will give rise to the most ... CPT Student Seminar: Galilean Hydrodynamics Through Null Reduction. Presented by Akash Jain, Durham University ...
One can characterize the breakdown of hydrodynamics by the existence of a diffusive pole, ω = −iDk2, in the energy-momentum ... The regime of electron hydrodynamics has been realized in several systems3,4,5,6,7, giving rise to new transport properties8,9, ... Turbulent hydrodynamics in strongly correlated Kagome metals. *Domenico Di Sante ORCID: orcid.org/0000-0001-9956-14111, ... Di Sante, D., Erdmenger, J., Greiter, M. et al. Turbulent hydrodynamics in strongly correlated Kagome metals. Nat Commun 11, ...
The Kelvin Hydrodynamics Lab tank provides excellent conditions for measuring the performance of surface ships and a wide ... hydrodynamics of towed surface-piercing and submerged bodies. *ocean engineering studies including vortex-induced vibration and ... The Kelvin Hydrodynamics laboratory is located off campus, adjacent to the West of Scotland Science Park - ... We do the majority of our experimental research in the Kelvin Hydrodynamics Laboratory. Its also used for undergraduate and ...
John Wiley & Sons Hydrodynamics and Water Quality The primary reference for the modeling of hydrodynamics and water quality in ... A.2 Hydrodynamics 531. A.3 Sediment Transport 532. A.4 Toxic Chemical Transport and Fate 532. A.5 Water Quality and ... 2 Hydrodynamics 11. 2.1 Hydrodynamic Processes 11. 2.2 Governing Equations 23. 2.3 Temperature 38. 2.4 Hydrodynamic Modeling 47 ... This new edition of Hydrodynamics and Water Quality: Modeling Rivers, Lakes, and Estuaries has been updated with more than 40% ...
Hydrodynamics Image analysis Mass transfer Morphology Physiology Abbreviations and Symbols. \( C_{{{\text{O}}_{2} }} \). ... Thomas CR, Zhang Z (1998) The effect of hydrodynamics on biological materials. In: Galindo E, y Ramírez OT (eds) Advances in ... In order to rigorously study the effects of hydrodynamics on the physiology of fungal microorganisms, it is necessary to rule ... Serrano-Carreón L., Galindo E., Rocha-Valadéz J.A., Holguín-Salas A., Corkidi G. (2015) Hydrodynamics, Fungal Physiology, and ...
The first part deals with the physical aspects of relativistic hydrodynamics, touching on fundamental topics such as kinetic ... The book provides a lively and approachable introduction to the main concepts and techniques of relativistic hydrodynamics in a ... book is devoted to applications and considers several physical and astrophysical systems for which relativistic hydrodynamics ... 12 Relativistic Hydrodynamics of Selfgravitating Fluids End Matter. Appendix A Geometrised System of Units Appendix B Notable ...
Purchase Experimental Hydrodynamics of Fast-Floating Aquatic Animals - 1st Edition. Print Book & E-Book. ISBN 9780128210253, ... Experimental Hydrodynamics of Fast-Floating Aquatic Animals 1st Edition. 0.0 star rating Write a review ... Experimental Hydrodynamics of Fast-Floating Aquatic Animals presents the latest research on the physiological, morphological ... Provides a comparison of human to animal hydrodynamics, detailing how energy is spent differently due to evolutionary advances ...
Hydrodynamics laboratory. Our laboratory is one of the best-equipped facilities of its kind covering a floor area of some 3000 ... Hydrodynamics laboratory. Contact Fluid Mechanics. Fluid Mechanics. Civil and Environmental Engineering. Skempton Building. ... The Hydrodynamics Laboratory is located in the basement of the Civil Engineering Building on the South Kensington Campus of ... The Hydrodynamics Section laboratory is equipped with the facilities to measure waves and their impact. Experiments in 2D ...
... ... Modeling Hydrodynamics, Water Temperature, and Water Quality in the Klamath River Upstream of Keno Dam, Oregon, 2006-09- ...
Purchase Hydrodynamics and Transport Processes of Inverse Bubbly Flow - 1st Edition. Print Book & E-Book. ISBN 9780128032879, ... Hydrodynamics and Transport Processes of Inverse Bubbly Flow helps facilitate a better understanding of the phenomena of ... Hydrodynamics and Transport Processes of Inverse Bubbly Flow provides the science and fundamentals behind hydrodynamic ... His research interests include multiphase flow and reactor development, hydrodynamics in multiphase flow, mineral processing, ...
Mining Publication: A Hydrodynamics-Based Approach for Predicting the Blast Damage Zone in Drifting as Demonstrated Using ...
We employ mesoscale hydrodynamics simulations in combination with a mechanical s … ... Hydrodynamics of sperm cells near surfaces Biophys J. 2010 Aug 9;99(4):1018-26. doi: 10.1016/j.bpj.2010.05.015. ... We employ mesoscale hydrodynamics simulations in combination with a mechanical sperm model to study the swimming behavior near ...
... development of the fundamental equations of fluid mechanics and their simplifications for several areas of marine hydrodynamics ... 2.016 Hydrodynamics (13.012). Fall 2005. Massachusetts Institute of Technology: MIT OpenCourseWare, https://ocw.mit.edu. ... development of the fundamental equations of fluid mechanics and their simplifications for several areas of marine hydrodynamics ...
Eisenberg H. (1985) Hydrodynamics, Thermodynamics and Scattering Properties: Nucleic Acids, Nucleosomes and Chromatin. In: ...
Article Hydrodynamics - Natural Water Bodies. The knowledge of the characteristics of the fluids and their ability to transport ... No comments were found for Hydrodynamics - Natural Water Bodies. Be the first to comment! ... showing practical applications of the methods and tools of Hydrodynamics. ...
Computational Hydrodynamics of Capsules and Biological Cells provides a comprehensive, rigorous, and current introduction to ...
This simulation uses a flux-limited diffusion solver to explore the radiation hydrodynamics of early galaxies, in particular, ...
The results of the first stage of the study (Table 1) help us understand the hydrodynamics of PSP. The results of the second ... Hydrodynamics of Poorna Shankhaprakshalana. Poorna shankhaprakshalana (PSP) is a hatha yoga practice involving the graded ... Stage 1 examined the hydrodynamics of PSP, while Stage 2 compared the efficacy of normal salt solution with half-strength salt ...
Hydrodynamics. High-resolution PIV was performed using a custom Matlab 6.1 program in two passes using a standard statistical ... In this study, we examine in detail the hydrodynamics of American eels (Anguilla rostrata) swimming steadily at 1.4 L s-1 and ... Hydrodynamics. In all 11 individuals, the wake consisted of lateral jets of fluid, alternating in direction, separated by one ... The hydrodynamics of anguilliform swimming have been studied much less. Like the eel, after which this mode is named, ...
... Authors: T. Werder, J.H. Walther and P. Koumoutsakos ...
If the modules Experimental methods in marine hydrodynamics and Numerical methods in marine hydrodynamics are not selected, TMR ... The most relevant for this specialisation is Experimental methods in marine hydrodynamics (3.75 ECTS), Numerical methods in ... The subject shall give in-depth knowledge of important problems in hydrodynamics. ... marine hydrodynamics (3.75 ECTS), Dynamic response of marine structures (3.75 ECTS), Analysis of marine structures, advanced ...
... (RHD). (hydrodynamics plus the affects of EMR). Radiation Hydrodynamics (RHD) is essentially "normal" ... Note that "RHD" is also sometimes used for Relativistic Hydrodynamics, i.e., hydrodynamics including the effects of relativity ... http://www.scholarpedia.org/article/Radiation_hydrodynamics. Referenced by: HARM2 Hydrodynamics ... Hydrodynamics plus the effects of Radiative Transfer (RT). When modeling a physical entity (e.g., a star or cloud), ...
Coupled Modeling of Hydrodynamics and Sound in Coastal Ocean for Renewable Ocean Energy Development ...
The equations of free surface hydrodynamics describe the motion of waves, such as those on the surface of the ocean. This is a ... Workshop on Free Surface Hydrodynamics. This workshop will be dedicated to the memory of Walter Craig.. October 5 - 9, 2020, ...
  • Under a unified thermodynamics framework explaining the physics of materials, granular solid hydrodynamics(GSH) was an extension towards describing granular materials, not only solid-like, but also fluid-like behaviors.In this paper, the fundamentals of GSH are briefly treated and then simplified to analyze quasistatic deformations in triaxial compressions. (cnki.com.cn)
  • This course covers the development of the fundamental equations of fluid mechanics and their simplifications for several areas of marine hydrodynamics and the application of these principles to the solution of engineering problems. (mit.edu)
  • The most relevant for this specialisation is Experimental methods in marine hydrodynamics (3.75 ECTS), Numerical methods in marine hydrodynamics (3.75 ECTS), Dynamic response of marine structures (3.75 ECTS), Analysis of marine structures, advanced course (3.75 ECTS), Integrated dynamic analysis of wind turbines (3,75 ECTS), Ship design for ice operations (3.75 ECTS). (ntnu.edu)
  • If the modules Experimental methods in marine hydrodynamics and Numerical methods in marine hydrodynamics are not selected, TMR 4300 - Experimental and Numerical Hydrodynamics is recommended as an optional course. (ntnu.edu)
  • This simulation uses a flux-limited diffusion solver to explore the radiation hydrodynamics of early galaxies, in particular, the ionizing radiation created by Population III stars. (anl.gov)
  • Radiation Hydrodynamics ( RHD ) is essentially "normal" Hydrodynamics plus the effects of Radiative Transfer (RT) . (vaporia.com)
  • Radiation hydrodynamics is the study of that process. (wisc.edu)
  • We are concerned with the global well-posedness of the diffusion approximation model in radiation hydrodynamics, which describe the compressible fluid dynamics taking into account the radiation effect under the non-local thermal equilibrium case. (aimsciences.org)
  • J. I. Castor, Radiation Hydrodynamics Cambridge University Press, 2004. (aimsciences.org)
  • S. Jiang, F. Xie and J. W. Zhang, A global existence result in radiation hydrodynamics, Industrial and Applied Mathematics in China, Series in Contemporary Applied Mathematics , High Edu. (aimsciences.org)
  • Smoothed-particle hydrodynamics ( SPH ) is a computational method used for simulating the mechanics of continuum media, such as solid mechanics and fluid flows. (wikipedia.org)
  • Smoothed-particle hydrodynamics is being increasingly used to model fluid motion as well. (wikipedia.org)
  • Various forms of particle refinement have been proposed for particle-based methods such as Smoothed Particle Hydrodynamics (SPH). (mit.edu)
  • Artificial viscosity is needed in Smooth Particle Hydrodynamics to prevent interparticle penetration, to allow shocks to form and to damp post shock oscillations. (diva-portal.org)
  • Smoothed particle hydrodynamics (SPH), as a Lagrangian, meshfree method, is supposed to be useful in solving acoustic problems, such as combustion noise, bubble acoustics, etc. , and has been gradually used in sound wave computation. (mdpi.com)
  • This thesis presents the formulation of a Smoothed Particle Hydrodynamics (SPH) model and its application to a range of engineering applications. (bl.uk)
  • We verify the here-proposed scheme using a fluid, which is simultaneously represented as a continuum using Smooth Particle Hydrodynamics, and as an atomistically resolved liquid using Molecular Dynamics. (fraunhofer.de)
  • The equations of free surface hydrodynamics describe the motion of waves, such as those on the surface of the ocean. (utoronto.ca)
  • They commute with respect of the non-canonical Poisson bracket which provides strong arguments towards complete integrability of free surface hydrodynamics. (arizona.edu)
  • His research interests include bubbly flows, advanced experiments in multiphase flows and multiphase hydrodynamics. (wiley.com)
  • Biofilms were grown from wild-type (WT) Pseudomonas aeruginosa PAO1 and the cell signaling lasI mutant PAO1-JP1 under laminar and turbulent flows to investigate the relative contributions of hydrodynamics and cell signaling for biofilm formation. (asm.org)
  • Our work demonstrates the anomalous landscape for electron hydrodynamics in systems beyond graphene, and presents experimental geometries to quantify the effects of electronic viscosity. (nature.com)
  • Unlike classical fluids, preferred directions inside crystals lift isotropic restrictions, necessitating a generalized treatment of electron hydrodynamics. (nature.com)
  • Electron hydrodynamics is observed when microscopic scattering processes conserve momentum over time- and length scales that are large compared to those of the experimental probe. (nature.com)
  • Note that "RHD" is also sometimes used for Relativistic Hydrodynamics , i.e., hydrodynamics including the effects of relativity. (vaporia.com)
  • Experimental Hydrodynamics of Fast-Floating Aquatic Animals presents the latest research on the physiological, morphological and evolutionary factors in aquatic animal locomotion. (elsevier.com)
  • The CFD simulation results were evaluated by studying hydrodynamics characterization in the FPB and comparing simulated DO profiles with experimental DO profiles within the biofilm section. (upc.edu)
  • Our instruments provide flow and particle information in a wide range of applications including aerodynamics, spray diagnostics, hydrodynamics, and more. (tsi.com)
  • 2018, https://www.sciencebuddies.org/science-fair-projects/project-ideas/Aero_p019/aerodynamics-hydrodynamics/best-hull-design?class=AQVnphZaoOd4rSgkqikC9NiaME4MWiptxeZC6DMKjZurupYOdoz0c0grE9wEXMCNi2ktY0nOGWwpsSDcXC3QjGNj. (sciencebuddies.org)
  • In condensed matter physics, quantum hydrodynamics is most generally the study of hydrodynamic-like systems which demonstrate quantum mechanical behavior. (wikipedia.org)
  • Using the region of the English Channel and the southern bight of the North Sea, we systematically compare the results of two independent finite element models of tidal hydrodynamics. (usgs.gov)
  • The research objective of this position is to improve understanding of hydrodynamics as they relate to ecosystem function in natural, restored and managed tidal systems in the Sacramento-San Joaquin River Delta. (ucdavis.edu)
  • Provide specialized technical expertise at the Center for Watershed Sciences in hydrodynamics,bathymetric modeling, and GIS techniques to understand tidal hydrodynamics. (ucdavis.edu)
  • By using specialized expertise on tidal hydrodynamics, responsible for ensuring uninterrupted communication between laboratory, data management and modeling. (ucdavis.edu)
  • Creative activities include assisting in project design, grant writing, proposal review and data analysis by providing to these endeavors the specialized expertise in tidal hydrodynamics for the PIs in the Center for Watershed Sciences. (ucdavis.edu)
  • This paper presents experimental studies on hydrodynamics and bed morphological characteristics under varying water and sediment discharges over a gravel channel bed with a boulder. (iwaponline.com)
  • The purpose of the current study was to determine the relationship between trabodenoson-induced changes in IOP and functional and morphological changes in outflow hydrodynamics in living mice. (arvojournals.org)
  • As such it gives a description of the theories for wave and nearshore hydrodynamics. (eurobuch.com)
  • We discuss nontrivial phenomena in the hydrodynamics of the superfluid quantum gases and fluids including the collective excitation spectrum in the BCS-BEC crossover, hydrodynamics of the rotating Bose condensates containing a large number of quantized vortices, and the involved and yet unresolved problem of the chiral anomaly in the hydrodynamics of superfluid Fermi systems with an anisotropic p-wave pairing. (ufn.ru)
  • Ib A. Svendsen,Hardcover,Series: Advanced Series on Ocean Engineering Series 24, English-language edition,Pub by World Scientific Publishing Company, Incorporated Textbooks New Books ~~ Technology~~ Civil ~~ General Introduction-to-Nearshore-Hydrodynamics~~Ib-A-Svendsen World Scientific Publishing Company, Incorporated This book is intended as an introductory textbook for graduate students and as a reference book for engineers and scientists working in the field of coastal engineering. (eurobuch.com)
  • Hydrodynamics and Transport Processes of Inverse Bubbly Flow provides the science and fundamentals behind hydrodynamic characteristics, including flow regimes, gas entrainment, pressure drop, holdup and mixing characteristics, bubble size distribution, and the interfacial area of inverse bubble flow regimes. (elsevier.com)
  • Hydrodynamics and Transport Processes of Inverse Bubbly Flow helps facilitate a better understanding of the phenomena of multiphase flow systems as used in chemical and biochemical industries. (elsevier.com)
  • The aim of this article has been to classify swimmers based on kinematics, hydrodynamics, and anthropometrics. (humankinetics.com)
  • It can be concluded that kinematics, hydrodynamics and anthropometrics are determinant domains in which to classify and characterize young swimmers' profiles. (humankinetics.com)
  • His research interests include multiphase flow and reactor development, hydrodynamics in multiphase flow, mineral processing, process intensifications, and micro-nano bubble science and technology and its applications. (elsevier.com)
  • Hydrodynamics of Multiphase Reactors addresses both practical and theoretical aspects of this topic. (wiley.com)
  • We do the majority of our experimental research in the Kelvin Hydrodynamics Laboratory. (strath.ac.uk)
  • The Hydrodynamics Laboratory is located in the basement of the Civil Engineering Building on the South Kensington Campus of Imperial College and has a tradition of excellence in wide-ranging areas of fluid mechanics with civil and environmental engineering applications. (imperial.ac.uk)
  • The Hydrodynamics Section laboratory is equipped with the facilities to measure waves and their impact. (imperial.ac.uk)
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  • In mechanically stirred reactors, most frequently used in fermentation industry, microbial growth and metabolite productivity depend on complex interactions between hydrodynamics, oxygen transfer, and mycelial morphology. (springer.com)
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  • The influence of kinetics and hydrodynamics upon bioreactor efficiency using immobilized glucoseisomerase in fixed- and fluid bed reactors. (fraunhofer.de)
  • In order to rigorously study the effects of hydrodynamics on the physiology of fungal microorganisms, it is necessary to rule out the possible associated effects of dissolved oxygen, something which has been reported scarcely. (springer.com)
  • The main goal of this work was to define the optimal operating conditions in terms of oxygen mass transfer, hydrodynamics and energy utilization in a rectangular air-lift reactor for use in a biological fuel cell by identifying its oxygen mass transfer coefficient and liquid circulation behavior. (uwo.ca)
  • Computational Hydrodynamics of Capsules and Biological Cells provides a comprehensive, rigorous, and current introduction to the fundamental concepts, mathematical formulation, alternative approaches, and predictions of this evolving field. (routledge.com)
  • A computational study of the hydrodynamics in the nasal region of a hammerhead shark (Sphyrna tudes): implications for olfaction. (doaj.org)
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  • Here we investigate the hydrodynamics of olfaction in Sphyrna tudes based on an anatomically-accurate reconstruction of the head and olfactory chamber from high-resolution micro-CT and MRI scans of a cadaver specimen. (doaj.org)
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  • Using hydrodynamics we explore the effects of the initial state, baryon stopping and baryon number transport on various observables such as spectra, elliptic flow and particle yields for heavy ion collisions at beam energies from sqrt{s_{NN}}=7.7 to 200 GeV. (cern.ch)
  • Regional cerebral blood flow, white matter abnormalities, and cerebrospinal fluid hydrodynamics in patients with idiopathic adult hydrocephalus syndrome. (bmj.com)
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  • Within the narrow range of reef aquarium temperatures, the effect of temperature on the viscosity of seawater is very minimal so it is not critical to consider temperature when discussing hydrodynamics in reef aquaria. (advancedaquarist.com)
  • This work is devoted to theoretical investigation of heat transfer and hydrodynamics in a cylindrical tube with a coiled tape for Reynolds numbers 200-3600 and small twist pitches. (begellhouse.com)
  • The Investigation of the Hydrodynamics of an Artificial Reef, Aquaculture and the Environment Barbara Sladonja, IntechOpen, DOI: 10.5772/30064. (intechopen.com)
  • Experimental investigation on the thermo-hydrodynamics of oscillatory meniscus in a capillary. (deepdyve.com)
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  • An important system of study in quantum hydrodynamics is that of superfluidity. (wikipedia.org)
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  • In this study, we examine in detail the hydrodynamics of American eels ( Anguilla rostrata ) swimming steadily at 1.4 L s -1 and compare them with previous results from other fishes. (biologists.org)
  • Study of nozzles at different locations and inclinations identified the dominant effects of bed hydrodynamics at the nozzle and jet tips on the distribution of liquid on solid particles. (uwo.ca)
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  • My first article on gas exchange introduces the key points of small scale hydrodynamics as applies to the dissolution rate of gases. (advancedaquarist.com)