## Hemorheology

Blood viscosity also increases with increases in red cell aggregability (see below). Blood viscosity is a measure of the ... Blood viscosity is determined by plasma viscosity, hematocrit (volume fraction of red blood cell, which constitute 99.9% of the ... Plasma's viscosity is determined by water-content and macromolecular components, so these factors that affect blood viscosity ... Anemia can reduce blood viscosity, which may lead to heart failure. Furthermore, elevation of plasma viscosity correlates to ...

## Temperature dependence of liquid viscosity

This form should not be applied to ammonia or water viscosity over a large temperature range. For liquid metal viscosity as a ... The temperature dependence of liquid viscosity is the phenomenon by which liquid viscosity tends to decrease (or, alternatively ... Kinematic viscosity can be estimated as a typical (thermal) velocity times the mean free path. A molecular view of liquids can ... Viscosity of water equation accurate to within 2.5% from 0 °C to 370 °C: μ ( T ) = 2.414 × 10 − 5 × 10 247.8 / ( T − 140 ) {\ ...

## Viscosity

The reyn is a British unit of dynamic viscosity. Viscosity index is a measure for the change of kinematic viscosity with ... At 25 °C, the viscosity is 18.6 μPa·s and the kinematic viscosity 15.7 cSt. The dynamic viscosity of water is ... The most usual decomposition yields the dynamic viscosity μ and the bulk viscosity σ. Newton's law of viscosity is a ... Viscoelastic solids may exhibit both shear viscosity and bulk viscosity. The extensional viscosity is a linear combination of ...

## Viscosity printing

The varying viscosities of the two rolled-on inks prevent them from mixing. A fourth color, of even thinner viscosity, can also ... Color viscosity printing is among the latest developments in intaglio printmaking. Color viscosity printing was developed by a ... The first ink would be fairly dense-of a relatively high viscosity. The application of the high-viscosity ink is carried out as ... Three to four colors of ink are mixed, each of a different viscosity. This viscosity is adjusted by the addition of uncooked ...

## Apparent viscosity

... the apparent viscosity depends on the shear rate. Apparent viscosity has the SI derived unit Pa·s (Pascal-second, but the ... the apparent viscosity is constant, and equal to the Newtonian viscosity of the fluid, but for non-Newtonian fluids, ... A single viscosity measurement at a constant speed in a typical viscometer is a measurement of the apparent viscosity of a ... Apparent viscosity (sometimes denoted η) is the shear stress applied to a fluid divided by the shear rate ( η = τ γ ˙ {\ ...

## Viscosity (programming)

The name is a metaphor for viscosity in liquids. Viscosity, a measurement of resistance to change for the design of notations. ... If it is easier to add a hack than it is to add code that fits into the program's design, then the system has high viscosity. ... In object oriented programming, viscosity refers to the ease at which a developer can add design-preserving code to a system. ... If it is easy to add new code to the program while maintaining the design, then the program has low viscosity. ...

## Inherent viscosity

... is the viscosity of the solvent. The unit of inherent viscosity is dL/g. "Dilute Solution Viscosity of Polymers". "IUPAC". ... Inherent viscosity is the ratio of the natural logarithm of the relative viscosity to the mass concentration of the polymer. ... Inherent viscosity is defined as η i n h = ln ⁡ η r e l c {\displaystyle \eta _{inh}={\frac {\ln \eta _{rel}}{c}}} where c is ... is the viscosity of the solution and η s {\displaystyle \eta _{s}} ...

## Viscosity (disambiguation)

Viscosity can also refer to: A cognitive dimension for the design of notations measuring resistance to change. Viscosity ( ... Viscosity (commonly perceived as "thickness", or resistance to pouring) is the measure of the resistance of a fluid to deform ... Viscosity (imaging software) - an out-of-print image and animation editing utility published by Sonic Foundry.. ...

## Extensional viscosity

... (also known as elongational viscosity) is a viscosity coefficient when applied stress is extensional ... is the extensional viscosity or elongational viscosity σ n {\displaystyle \sigma _{n}\,\!} is the normal stress: σ n = F A {\ ... the uniaxial elongational viscosity is three times the shear viscosity which can be derived using the continuity equation for ... Extensional viscosity can be measured using rheometers that apply extensional stress. Acoustic rheometer is one example of such ...

## Viscosity solution

Moreover, the definition of viscosity solutions does not involve any viscosity of any kind. The theory of viscosity solutions ... Viscosity solution A continuous function u is a viscosity solution of the PDE if it is both a supersolution and a subsolution. ... the notion of viscosity sub- and supersolution is also conserved by half-relaxed limits. The term viscosity solutions first ... Viscosity solutions have become a central concept in the study of elliptic PDE as can be corroborated by the fact that ...

## Rotational viscosity

Viscosity is usually described as the property of a fluid which determines the rate at which local momentum differences are ... Rotational viscosity is a property of a fluid which determines the rate at which local angular momentum differences are ... is the rotational viscosity coefficient. de Groot, S.R.; Mazur, P. (1984). Non-Equilibrium Thermodynamics. New York: Dover ... then the rate of equilibration will be determined by the rotational viscosity coefficient. The angular momentum density of a ...

## Intrinsic viscosity

... [ η ] {\displaystyle \left[\eta \right]} is a measure of a solute's contribution to the viscosity η {\ ... More generally, intrinsic viscosity can be used to assay quaternary structure. In polymer chemistry intrinsic viscosity is ... It should not be confused with inherent viscosity, which is the ratio of the natural logarithm of the relative viscosity to the ... The intrinsic viscosity formula may also be generalized to include a frequency dependence. The intrinsic viscosity is very ...

## Reduced viscosity

Relative viscosity Viscosity Intrinsic viscosity Huggins equation "reduced viscosity of a polymer". IUPAC. ... Reduced viscosity is equal to the ratio of the relative viscosity increment ( η i {\displaystyle \eta _{i}} ) to the mass ... Reduced viscosity: η i c {\displaystyle {\frac {\eta _{i}}{c}}} . The unit must be specified; mL/g is recommended. Relative ... viscosity increment: η i = η − η s η s {\displaystyle \eta _{i}={\frac {\eta -\eta _{s}}{\eta _{s}}}} ...

## Volume viscosity

... (also called second coefficient of viscosity or dilatational viscosity or bulk viscosity) becomes important ... The same goes for shear viscosity. For a Newtonian fluid the shear viscosity is a pure fluid property, but for a non-Newtonian ... Common symbols for volume viscosity are ζ {\displaystyle \zeta } and μ v {\displaystyle \mu _{v}} . Volume viscosity appears in ... is the shear viscosity coefficient and β {\displaystyle \beta } is a second viscosity coefficient. Notice that S {\displaystyle ...

## Relative viscosity

... ( η r e l {\displaystyle \eta _{rel}} ) (a synonym of "viscosity ratio") is the ratio of the viscosity of a ... solution ( η {\displaystyle \eta } ) to the viscosity of the solvent used ( η s {\displaystyle \eta _{s}} ), η r e l = η η s {\ ...

## Fuel viscosity control

... is a technique to control viscosity and temperature of fuel oil (FO) for efficient combustion in diesel ... Fuel oil's viscosity strongly depends on the temperature, the higher is the temperature the lower is the viscosity. For optimal ... Viscometer measures the actual viscosity of the fuel, this value is compared with the set point in the controller and the ... combustion the viscosity of the fuel should be in the range of 10-20 cSt. To maintain this value a combination of viscometer, ...

## Time-dependent viscosity

... time dependent and time-independent viscosity. In the case of time dependent viscosity, the apparent viscosity of a fluid ... Time-dependent viscosity is a property of one class of non-Newtonian fluids in which the apparent viscosity of the fluid ... These show a time-dependent increase in viscosity; the longer the fluid undergoes shearing force, the higher its viscosity. ... the lower its viscosity. A thixotropic fluid is a fluid which takes a finite time to attain equilibrium viscosity when ...

## Viscosity (imaging software)

Viscosity is also an out-of-print image and animation editing utility published by Sonic Foundry. It can work with PNG, GIF, ...

## High viscosity mixer

... s are mixers designed for mixing materials with laminar mixing processes because the ingredients have such ... The process can be used for high viscosity liquid to liquid mixing or for paste mixing combining liquid and solid ingredients. ... Some products that may require laminar mixing in a high viscosity mixer include putties, chewing gum, and soaps. The end ... ISBN 978-0-471-45144-0. CS1 maint: Extra text: authors list (link) High Viscosity Mixing - Technical Paper Double Planetary & ...

## Ford viscosity cup

The Ford viscosity cup is a simple gravity device that permits the timed flow of a known volume of liquid passing through an ... However, the conditions in a simple flow cup are seldom ideal for making true measurements of viscosity. It is important when ... Under ideal conditions, this rate of flow would be proportional to the kinematic viscosity (expressed in stokes and centistokes ... as ambient temperature makes a significant difference to viscosity and thus flow rate. The original Ford Cup was based on ...

## Orders of magnitude (viscosity)

"Viscosity Tables". Retrieved 2014-08-12. "Units of viscosity" (PDF). Retrieved 2015-02-03. "Viscosity Chart". Edgeworth, R.; ... Unless otherwise stated, all viscosities are measured at room temperature and pressure. Kaye&Laby - 2.2.3 Viscosities " ... This page is a progressive and labeled list of the SI dynamic viscosity orders of magnitude, with examples appended where ...

## Constant viscosity elastic fluid

Constant viscosity elastic liquids, also known as Boger fluids are elastic fluids with constant viscosity. This creates an ... Since Boger fluids can have constant viscosity, an experiment can be done where the results of the flow rates of a Boger liquid ... Boger fluids are made primarily by adding a small amount of polymer to a Newtonian fluid with a high viscosity, a typical ... He released his first paper on Boger fluids in 1977, titled "A Highly Elastic Constant-Viscosity Fluid", where he described the ...

## Ethylene glycol

"Viscosity". The Physics Hypertextbook. Retrieved 2007-10-02. Siegfried Rebsdat; Dieter Mayer (2005), "Ethylene Glycol", ...

## Dilatant

Viscosity of a solution as a function of shear rate is given via the Power Law equation, where η is the viscosity, K is a ... ISBN 1-4292-1812-6. "Viscosity Chart". Viscosity Chart. Research Equipment Limited. Retrieved 4 June 2011. Morrison, Ian; ... Thus, the viscosity of a shear-thickening fluid is dependent on the shear rate. The presence of suspended particles often ... A dilatant (also termed shear thickening) material is one in which viscosity increases with the rate of shear strain. Such a ...

## Streaming instability

The ice line has also been proposed as the site of a pressure bump, however, this requires a steep viscosity transition. If the ... If the magnetic field of the disc is aligned with its angular momentum the Hall effect increases viscosity which can result in ... For some ranges of particle size and gas viscosity outward flow of the gas may occur, reducing its density and further ... Viscosity transitions". Astronomy & Astrophysics. 570: A75. arXiv:1408.1016 . Bibcode:2014A&A...570A..75B. doi:10.1051/0004- ...