The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness":...

the apparent viscosity is constant, and equal to the Newtonian viscosity of the fluid, but for non-Newtonian fluids, the apparent viscosity depends on the...

The viscosity index (VI) is an arbitrary, unit-less measure of a fluid's change in viscosity relative to temperature change. It is mostly used to characterize...

In mathematics, the viscosity solution concept was introduced in the early 1980s by Pierre-Louis Lions and Michael G. Crandall as a generalization of...

Dynamic viscosity is a material property which describes the resistance of a fluid to shearing flows. It corresponds roughly to the intuitive notion of...

antiwear additives, detergents, dispersants, and, for multi-grade oils, viscosity index improvers.[citation needed] The main function of motor oil is to...

Viscosity depends strongly on temperature. In liquids it usually decreases with increasing temperature, whereas, in most gases, viscosity increases with...

Relative viscosity (ηrel{\displaystyle \eta _{rel}}) (a synonym of "viscosity ratio") is the ratio of the viscosity of a solution (η{\displaystyle \eta...

Volume viscosity (also called bulk viscosity, or second viscosity or, dilatational viscosity) is a material property relevant for characterizing fluid...

describe the viscous stress and the strain rate are related by a constant viscosity tensor that does not depend on the stress state and velocity of the flow...

Intrinsic viscosity [η]{\displaystyle \left[\eta \right]} is a measure of a solute's contribution to the viscosity η{\displaystyle \eta } of a solution...

This equation represents apparent viscosity where apparent viscosity is the shear stress divided by shear rate. Viscosity is dependent on stress. This is...

inherent viscosity is the ratio of the natural logarithm of the relative viscosity of a polymer to its mass concentration. Inherent viscosity is defined...

Look up viscosity in Wiktionary, the free dictionary. Viscosity (commonly perceived as "thickness", or resistance to pouring) is the measure of the resistance...

In fluid dynamics, the reduced viscosity of a polymer is the ratio of the relative viscosity increment (ηi{\displaystyle \eta _{i}}) to the mass concentration...

not follow Newton's law of viscosity, that is, it has variable viscosity dependent on stress. In particular, the viscosity of non-Newtonian fluids can...

loss of viscosity and alkalies in strong concentration also tend to reduce viscosity. It is insoluble in most hydrocarbon solvents. The viscosity attained...

In object oriented programming, viscosity refers to the ease at which a developer can add design-preserving code to a system. If it is easier to add a...

volcanic ash and other fragments called tephra, not lava flows.) The viscosity of most lava is about that of ketchup, roughly 10,000 to 100,000 times...

properties play significant roles in disease processes. Blood viscosity is determined by plasma viscosity, hematocrit (volume fraction of red blood cell, which...

The shear viscosity (or viscosity, in short) of a fluid is a material property that describes the friction between internal neighboring fluid surfaces...

High viscosity mixers are mixers designed for mixing materials with laminar mixing processes because the ingredients have such high viscosities that a...

be characterized by a single coefficient of viscosity for a specific temperature. Although this viscosity will change with temperature, it does not change...

Viscosity printing is a multi-color printmaking technique that incorporates principles of relief printing and intaglio printing. It was pioneered by Stanley...

Extensional viscosity (also known as elongational viscosity) is a viscosity coefficient when the applied stress is extensional stress. It is often used...

rheology, shear thinning is the non-Newtonian behavior of fluids whose viscosity decreases under shear strain. It is sometimes considered synonymous for...

engine oil viscometrics are the oil's kinematic viscosity, its high temperature-high shear viscosity measured by the tapered bearing simulator, and low...

Fuel viscosity control is a technique to control viscosity and temperature of fuel oil (FO) for efficient combustion in diesel engines of motor vessels...

u}{\partial y}}\right|_{y=0}} where μ {\displaystyle \mu } is the dynamic viscosity, u {\displaystyle u} the flow velocity and y {\displaystyle y} the distance...

A Mooney viscometer is an instrument used for measuring the Mooney viscosity of rubbers. Invented by Melvin Mooney, it contains a rotating spindle and...