Numerical thermal simulation. Medical search. Frequent questions

Different definitions of these particle sizes and shapes cause uncertainties and even result in misleading solutions in the numerical modeling and remote sensing of atmospheric properties. (ametsoc.org)
Increasing the performance of PCBs used in power converters requires more holistic modeling of their thermal performance. (usu.edu)
This paper presents the development of a novel Gerber file-based numerical modeling and simulation solution for the thermal analysis of PCBs that can be used for analysis and evaluation of the thermal performance of a given PCB design using standard PCB design files. (usu.edu)
The proposed modeling and analysis allow the researchers and engineers to understand the PCB thermal performance quickly and accurately using the PCB design files that they are familiar with. (usu.edu)
Includes mathematical modeling and numerical simulations. (routledge.com)
He has expertise in the field of food engineering, food process modeling and simulation. (routledge.com)
Self-consistent modeling and multi-dimensional simulation of semiconductor nanophotonicdevices is an important tool in the development of future integrated light sources and quantumdevices. (wias-berlin.de)
The efficient implementation of multi-dimensional numerical simulationsfor computer-aided design tasks requires sophisticated numerical methods and modeling tech-niques. (wias-berlin.de)
In parallel, MK Tech Solutions' simulation modeling was optimized based on the experiments, enabling numerical simulations to be used to design the 3-D large-scale experiments. (serdp-estcp.org)

3-D transient numerical simulations of two twin screw extruder configurations are then presented. (degruyter.com)
Investigation of transient numerical sim. (sdu.edu.tr)
The effects of the designed cooling channels, heat transfer, and solidification of the molten metal are studied in transient numerical terms. (sdu.edu.tr)

Microphysical and radiative transfer simulations as well as remote sensing implementations often require the conversions of particle size distributions (PSDs) in terms of the number concentration, projected area, and volume. (ametsoc.org)

In this work, Large-Eddy Simulations of a single-element combustion chamber experimentally investigated at the Technical University of Munich are carried out at cooled and non-cooled conditions. (springer.com)

In a next step, we wanted to establish the reliability of the numerical results for twin screw extruders by performing experiments on a 40 mm and a 58 mm screw diameter machine. (degruyter.com)
Fisenko S, Bobb J, Rodrigues CJ, Ei-Shall KM (2019) Nucleation of gold nanoparticles in a solution via laser hell: simulation and experiments. (springer.com)
To analyze and make use of the thermal effect during the cavitation, experiments were performed by recording the heat generated at fixed time interval (2 minutes) with different working conditions (initial temperature, liquid volume, et al. (datadryad.org)
In addition, during an initial round of 3-D heat-transfer experiments in large containers (up to 150 m³), the progression of heating to 100°C and accompanying desaturation were monitored using 300 temperature sensors and 35 time-domain reflectometry probes, respectively, allowing comparisons of the physical experiments and accompanying numerical simulations. (serdp-estcp.org)

In this investigation, based on the theory that the thermal conductivity can be determined by measuring the speed of the propagation of the solid/liquid phase interface during phase change, a set of system is developed to investigate the thermal conductivity of molten salts at liquid/solid phase transformation point. (asme.org)
Expansion of the dimensionless groups gives the explicit dependence of heat transfer coefficient h on thermal conductivity k , density ρ , viscosity µ , and specific heat C p . (nature.com)
Unlike traditional TIMs infiltrated with randomly oriented high conductive fillers, the laminated TIM with vertically aligned graphite provides extraordinarily high z-axis thermal conductivity and controllable stiffness by simply setting the thickness of each component layer to match different surfaces. (asme.org)
The PCM's refractory at the latent heat thermal energy storage (LHTES) unit bottom hinders the heat storage efficiency, despite the significant improvement in thermal conductivity achieved through the addition of metal foam. (lu.se)

The comparison of the TGO final deformation profile between numerical and experimental observation shows a good agreement indicating the correctness and effectiveness of the present procedure, which can guide the prediction of the failure in TGO for the future design and optimization for TBC system. (hindawi.com)
Various concepts to reduce these loads have thus been proposed but quantitative experimental analysis or numerical predictions are scarcely available. (sae.org)
Higher temperatures and pressures reached by CH \(_4\) /O \(_2\) represent a challenge for both experimental and numerical studies. (springer.com)
The authors show a realistic growth of the thermal boundary layer, but did not manage to match the experimental data. (springer.com)
A series of experimental tests was conducted to evaluate the effects of processing pressure and surface roughness on the overall thermal performance of the graphite TIMs. (asme.org)
Furthermore, experimental studies of the influence of initial temperature, flow rate, fluid volume, and fluid viscosity on the thermal effect of cavitation were performed, and the results were analyzed. (datadryad.org)
The proposed approach was validated using the one-dimensional numerical solutions and the experimental results of confined compression of articular cartilage described in the literature. (cdc.gov)

X. Shan, Simulation of Rayleigh-Bénard convection using a lattice Boltzmann method, Phys. (mechanics-industry.org)
Electrohydrodynamic Fe3O4-Ethylene glycol nanofluid forced convection was simulated in presence of thermal radiation. (sharif.edu)
4. Sheikholeslami, M. and Ellahi, R. "Three dimensional mesoscopic simulation of magnetic field effect on natural convection of nanofluid", International Journal of Heat and Mass Transfer, 89, pp. 799-808 (2015). (sharif.edu)
8. Sheikholeslami, M., and Seyednezhad, M. "Simulation of nanofluid flow and natural convection in a porous media under the influence of electric field using CVFEM", International Journal of Heat and Mass Transfer, 120, pp. 772-781 (2018). (sharif.edu)
Therefore, the numerical simulation of heat and mass transfer in a forced convection solar drying system integrated with black-coated firebrick sensible thermal storage materials (STSM) for the cocoa beans, locust beans, cereal grains, etc., was investigated under no-load conditions. (asme.org)
Thermal wells contain electrical heating elements operating at 400-700°C and can heat both high- and low-permeability media by a combination of TCH and thermally induced convection processes. (serdp-estcp.org)

This paper presents three-dimensional numerical simulations of thermodynamic and hydrodynamic response of a wheel shaped solid graphite production target for the super conducting fragment separator (Super-FRS) that is irradiated with a fast extracted high intensity uranium beam. (cambridge.org)
We performed relativistic hydrodynamic simulations of overpressured and pressure-matched jets. (aanda.org)

13. Sheikholeslami, M. "Numerical investigation for CuOH2O nanofluid flow in a porous channel with magnetic field using mesoscopic method", Journal of Molecular Liquids, 249, pp. 739-746 (2018). (sharif.edu)

12. Sheikholeslami, M. and Rokni, H.B. "Numerical simulation for impact of Coulomb force on nanofluid heat transfer in a porous enclosure in presence of thermal radiation", International Journal of Heat and Mass Transfer, 118, pp. 823-831 (2018). (sharif.edu)
Single-unit and multi-unit models of porous media (metal felts) have been used to investigate thermal fluid-structure interaction phenomena in a liquid sodium system. (techscience.com)

Multiple scattering effects in droplet aerosols were investigated theoretically using three different numerical approaches and experimentally by means of a specially developed measuring system. (spie.org)

Because of the mathematical identity between thermal and mass diffusion processes, the triphasic model was transferred into a convective thermal diffusion process in the commercial finite element software. (cdc.gov)

This technique is validated versus traditional simulation methods (i.e. conforming meshes). (degruyter.com)
So far, the numerical methods for solving two-phase flow governing equations are mainly finite difference methods, which are relatively mature and rich in results [ 12 , 13 ]. (hindawi.com)
In food processing, thermal operations are the most common and conventional methods for obtaining and treating different products. (routledge.com)
Conventional methods such as injection of thermal hydrate inhibitors, thermal insulating or heating, gas dehydration, and reducing pressure are time-consuming and expensive, and sometimes they are not realistic in production conditions. (datadryad.org)
The group Scale Resolving CFD takes part in the development of the DLR-own Code TRACE, while focus lies on new scale resolving methods like Large Eddy Simulation (LES) and hybrid RANS-LES approaches. (dlr.de)
The Virtual Engine Platform group integrates all numerical methods in one platform - the virtual engine. (dlr.de)
Treating practical problems requires analytic techniques to understand and investigate properties of SDEs and stochastic numerical methods to compute quantities of interest, where the latter and the former often go hand in hand. (lu.se)
During this course we will discuss efficiency of Monte Carlo methods for SDEs and how to improve it by variance reduction techniques and Multi-level Monte Carlo, and we will explore structural properties of SDEs and numerical methods that preserve these properties. (lu.se)
Recap of SDEs and numerical methods for SDEs. (lu.se)
This material will be provided in lectures and exercise classes, which include implementing numerical methods and testing them. (lu.se)
Standard analysis and linear algebra, Numerical analysis of ordinary differential equations (including the corresponding programming skills), Basic probability theory, fundamentals of the concepts of SDEs and how to develop and analyse numerical methods for their simulation. (lu.se)

S.S. Chikatamarla, C.E. Frouzakis, I.V. Karlin, A.G. Tomboulides, K.B. Boulouchos, Lattice Boltzmann method for direct numerical simulation of turbulent flows, J. Fluid Mech. (mechanics-industry.org)

Such phenomena could be more prominent when TBC experiences a more complicated loading condition, since turbine blade usually suffers not only thermal cycling but also mechanical loading at a high temperature due to the centrifugal force generated by high speed revolution in operation. (hindawi.com)
This study focuses on the development of a simulation software able to predict the car cabin blown air temperature. (sae.org)
Soil temperature - numerical calculation that used includes phase change, with explicit active layer depths. (lu.se)

The equations governing the fluid flow for a three-dimensional solar drying system were solved using the finite volume method with the aid of ansys , the computational fluid dynamics software to comprehend the dynamic and thermal behavior of the airflow within the dryer. (asme.org)
Each of the PCC simulation investigated by its flow behavior for the velocity vectors and turbulence kinetic energy (TKE). (akademiabaru.com)

A numerical simulation model is developed for characterizing three dimensional multiphase fluid flow phenomena in naturally fractured reservoirs. (onepetro.org)

Numerical simulations to guide process development and optimization have become standard tools in industrial fabrication. (nature.com)
Simulations can guide important technological decisions by revealing performance bottle-necks in new device concepts, contribute to their understanding and help to theoretically exploretheir optimization potential. (wias-berlin.de)
This platform offers unique possibilities of optimization on all levels, from component level up to full engines on the basis of coupled simulations (structure-mechanical, fluid-mechanical, thermodynamical, aeroelastical). (dlr.de)

In the aeronautics and space field, numerical modelling, calculation, simulation and validation are essential in any design of flying machines, and in all technological aspects of any kind. (ipsa.fr)
Scale resolving flow simulations - enabled through increasing hardware performance - gain growing interest in the calculation of aero engine parts. (dlr.de)

The benefit results from the remarkable ability to sustain high thermal gradients in the presence of adequate back-side cooling. (hindawi.com)
10 ] further derived analytical results for stress distribution and plastic zone sizes to pursue a mechanics-based explanation for the evolution of undulations with multiple thermal cycles. (hindawi.com)
The measured bulk values of pressure were then compared to the corresponding values extracted from the CFD simulation results. (degruyter.com)
In recent years, numerical simulation has become an effective research tool and has achieved relatively abundant results. (hindawi.com)
Previously, we reported simulation results that were carried out using two-dimensional computer codes which showed that one can use a solid graphite target for the Super-FRS for the highest intensity (5 × 10 11 ions per spill) of the fast extracted uranium beam. (cambridge.org)
Compared with the experiment, the LES shows improved results with respect to RANS simulations published. (springer.com)
The numerical results are compared directly with the measured data. (intechopen.com)
Numerical results suggest that production response of current steamflood operations can be improved by inclusion of hydraulic fractures. (onepetro.org)
RESULTS: In vitro equilibrium dialysis revealed that non-thermal application of FUS increased the concentration of unbound cisplatin compared to cassettes that were not exposed to sonication, suggesting successful unbinding. (bvsalud.org)
The accuracy of the fire simulation results not only depends on the fire source model itself but also on the ventilation network model. (cdc.gov)

For the simulation of realistic devices with complex,multi-dimensional geometries, we have developed a novel hp-adaptive finite element approachfor the optical Maxwell equations, using mixed meshes adapted to the multi-scale properties ofthe photonic structures. (wias-berlin.de)
Finite Element Analysis (FEA) has been widely used through numerical analysis that has been successfully applied in many engineering and bioengineering areas since the 1960s. (bvsalud.org)
The finite element method (FEM) is a numerical procedure for analyzing structures. (bvsalud.org)

This paper reports a numerical simulation procedure to model crack propagation in TGO layer and TGO growth near a surface groove in metal substrate upon multiple thermal-mechanical cycles. (hindawi.com)

In this paper, a numerical model of a spark ignition (SI) engine was developed to simulate the effect of pre-combustion chamber (PCC) on the dynamics flow inside the engine. (akademiabaru.com)

Application to Prediction of Thermal Deficit. (sae.org)
This leads to develop a reduced combustion model, which combined with the simulation software, will offer a real-time running prediction tool. (sae.org)

The model uses a dynamic coupling algorithm including a CFD simulation of the cabin airflow, a model of the cabin structure and the detailed passenger Fiala Physiological Comfort (FPC) model. (sae.org)
The coupled model was validated by an experiment conducted in a climate chamber with 22 human test subjects, to assess the effect of local measures such as seat heating in a cold environment on surface temperatures, thermal sensation and comfort. (sae.org)
The performance of the coupled model and the effect of concepts to reduce the heating energy demand and enhance thermal comfort, such as a low emissivity window coating, seat and panel heating, are demonstrated as two sample test cases at cold weather conditions. (sae.org)
X. He, S. Chen, G.D. Doolen, A novel thermal model for the lattice Boltzmann method in incompressible limit, J. Comput. (mechanics-industry.org)
I.V. Karlin, D. Sichau, S.S. Chikatamarla, Consistent two-population lattice Boltzmann model for thermal flows, Phys. (mechanics-industry.org)
At present, there are two approaches for numerical simulation of gas-particle two-phase flow: two-fluid model and particle-trajectory model [ 2 ]. (hindawi.com)
However, the convergence of our new model is much better and, because of the separation in two stages, any quantity related to the problem can be easily calculated afterwards without recomputing the simulation. (spie.org)
A fully implicit 3-D thermal simulator was used to model the heat transfer efficiency and productivity enhancement when using this approach. (onepetro.org)
Moreover, it is critical to the mine fire simulation program as well since the fire simulation is built upon the mine ventilation model. (cdc.gov)

Simulating the swelling and deformation behaviour in soft tissues using a convective thermal analogy. (cdc.gov)

The robust capabilities of restart analysis in ABAQUS help to implement the overall simulation for TGO crack propagation. (hindawi.com)
Designing a better drying system to accommodate thermal storage materials requires detailed analysis, which could be achieved through numerical simulation. (asme.org)
Residual Stress Analysis on Welded Joints by Means of Numerical S. (intechopen.com)
The detailed analysis of our simulations and the nonthermal emission calculations show that interaction between a recollimation shock and traveling shock produce a typical and clear signature in both the single-dish light curves and in the VLBI observations: the flaring peaks are higher and delayed with respect to the evolution of a perturbation through a conical jet. (aanda.org)
Such a structural analysis allows the determination of stress resulting from external force, pressure, thermal change, and other factors. (bvsalud.org)

Slow thermal equilibration of FAPbBr 3 is likely to substantially impact the time-dependent response of optoelectronic devices that heat the semiconductor active layer and provide further evidence that the poor bulk thermal transport of hybrid perovskite materials extends to microscopic thermal processes. (osti.gov)
The "heat plane source" concept is presented in this paper to explain the advantages of fractured steam injectors for improvement of thermal recovery processes. (onepetro.org)

However, the heat transfer at solid/liquid phase interface belongs to Micro/Nanoscale Heat transfer, lots of the thermal properties of molten salt at melting point is difficult to test. (asme.org)
Numerical Study of Heat Losses in Automotive Engines during Cold Starts. (sae.org)
2. Sheikholeslami, M. and Rokni, H.B. "Simulation of nanofluid heat transfer in presence of magnetic field: A review", International Journal of Heat and Mass Transfer, 115, pp. 1203-1233 (2017). (sharif.edu)
6. Sheikholeslami, M. and Shehzad, S.A. "Thermal radiation of ferrofluid in existence of Lorentz forces considering variable viscosity", International Journal of Heat and Mass Transfer, 109, pp. 82-92 (2017). (sharif.edu)
9. Sheikholeslami, M., Shamlooei, M., and Moradi, R. "Numerical simulation for heat transfer intensification of nanofluid in a permeable curved enclosure considering shape effect of Fe3O4 nanoparticles", Chemical Engineering & Processing: Process Intensification, 124, pp. 71-82 (2018). (sharif.edu)
Ab initio molecular dynamics simulations support the hypothesis that low-energy inorganic sublattice phonon modes are populated initially in the heat transfer process, with a slow thermal population of the higher-energy phonon modes associated primarily with the organic cation. (osti.gov)
The thermal impact of cavitation, supposed to heat the fluids and prevent the formation of gas hydrate, was evaluated. (datadryad.org)

However, the simulation of the solidification of a molten metallic alloy is challenging since it involves a complex interplay of physics and chemistry on different length scales, from the atomic scale up to the macroscopic scale. (nature.com)

The advantage of the proposed thermal analogy technique over previous studies is that it accounts for the convective diffusion of ion concentrations and the Donnan osmotic pressure in the interstitial fluid. (cdc.gov)

This way, data for process simulations is obtained, and a deeper understanding of nucleation, crystal growth, microstructural evolution, and other details of the transformation from liquid to solid can be gained. (nature.com)

The numerical algorithm largely follows Wania et al. (lu.se)

This book covers basics and advances in thermal processing of food. (routledge.com)

N. Delbosc, J.L. Summers, A.I. Khan, N. Kapur, C.J. Noakes, Optimized implementation of the Lattice Boltzmann Method on a graphics processing unit towards real-time fluid simulation, Comput. (mechanics-industry.org)
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences , 52 (2), 198-204. (akademiabaru.com)
Exp Thermal Fluid Sci 119. (springer.com)
Fast Solvers for Unsteady Thermal Fluid Structure Interaction , Int. J. Numer. (lu.se)
A Time-Adaptive Fluid-Structure Interaction Method for Thermal Coupling , Comp. (lu.se)

To overcome these limitations, thermal conduction heating (TCH) is gaining attention for usage even in heterogeneous subsurface settings with layers of low permeability and for contaminants with moderate to high boiling points. (serdp-estcp.org)

International Journal of Thermal Sciences , 197 , Article 108757. (lu.se)

In addition, using metallic-graphite composites greatly improves the bonding between the graphite and the metallic host compared to nonmetallic materials, and thus the thermal boundary resistance can be significantly reduced. (asme.org)

Soil properties - each layer's physical properties (thermal, hydraulic, porosity) can be scaled between mineral and organic by setting iforganicsoilproperties to 1 in the .ins files. (lu.se)

Soft matter is easily deformable when exposed to weak external fields, such as flow fields (microfluidics), mechanical forces, electric or magnetic fields, or by thermal fluctuations. (ntnu.edu)
These improvements effect the way the lifetime of engine parts is calculated, by giving respect to combined mechanical, thermal and corrosive loads, which is the research objective of the CMP group. (dlr.de)

Three-dimensional simulations of a solid graphite target. (cambridge.org)
This paper introduces a high performance thermal interface material (TIM) with vertically aligned graphite. (asme.org)

We computed the nonthermal emission, including adiabatic and synchotron losses, resulting from the simulation. (aanda.org)

Numerical simulation was performed to study the thermal performance of cavitation. (datadryad.org)

The thermal effect of cavitation was applied to the prevention of gas hydrate in this study. (datadryad.org)
This study employs numerical simulation to examine the impact of applying bottom cross-cut on PCM's spatial distribution in a horizontal LHTES unit. (lu.se)

At the same time, they employed a numerical method for the first time to investigate the displacement instabilities for a sinusoidal undulation embedded into the bond coat. (hindawi.com)

In the last decade, the largely empirical approach for obtaining a desired microstructure during manufacturing of metallic and semiconductor parts was replaced by a new approach, based on computer simulations of the solidification process 1 , 2 . (nature.com)
The applicability and efficiency of this approach were investigated by means of numerical simulation. (onepetro.org)

Such information can now be obtained through the numerical simulation of the transient flow in extruder components. (degruyter.com)
After that, cold flow simulation is used to analyze each type of the PCC powered with natural gas fuel by ANSYS Fluent 16.0 simulation software. (akademiabaru.com)

The design of a new semi-analytical Monte Carlo simulation is discussed in detail in this paper. (spie.org)

In the first stage, the simulation itself, the contribution of each scattering event to the total reflectance and transmittance is evaluated. (spie.org)

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