viscosity


viscosity
coefficient of resistance to flow. A fluid property that relates the magnitude of fluid shear stresses to the fluid strain rate, or more simply, to the spatial rate of change in the fluid velocity field. Mathematically, this is expressed as: t = m*(dV/dy), where t is the shear stress in the same direction as the fluid velocity V, and y is a direction perpendicular to the fluid velocity direction.

Mechanics glossary. 2013.

Synonyms:

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  • viscosity — [vis käs′ə tē] n. pl. viscosities [ME viscosite < ML viscositas] 1. the state or quality of being viscous 2. a) Physics the internal friction of a fluid which makes it resist flowing past a solid surface or other layers of the fluid: symbol, η …   English World dictionary

  • Viscosity — Vis*cos i*ty, n. [Cf. F. viscosit[ e], LL. viscositas.] 1. The quality or state of being viscous. [1913 Webster] 2. (Physics) A property possessed by a viscous fluid, being a resistance to the forces causing a fluid to flow, caused by… …   The Collaborative International Dictionary of English

  • viscosity — index adhesion (affixing) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • viscosity — (n.) early 15c., from O.Fr. viscosite or directly from M.L. viscositas, from L. viscosus (see VISCOUS (Cf. viscous)) …   Etymology dictionary

  • viscosity —  Viscosity  Вязкость   Свойство текучих тел (жидкостей и газов) оказывать сопротивление перемещению одной их части относительно другой. Одно из трёх явлений переноса. Вязкость твёрдых тел обладает рядом специфических особенностей и… …   Толковый англо-русский словарь по нанотехнологии. - М.

  • viscosity — ► NOUN (pl. viscosties) 1) the state of being viscous. 2) a quantity expressing the magnitude of internal friction in a fluid, as measured by the force per unit area resisting uniform flow …   English terms dictionary

  • Viscosity — For other uses, see Viscosity (disambiguation). Viscosity The substance above has lower viscosity than the substance below SI symbol: μ, η SI unit: Pa·s  …   Wikipedia

  • viscosity — /vi skos i tee/, n., pl. viscosities. 1. the state or quality of being viscous. 2. Physics. a. the property of a fluid that resists the force tending to cause the fluid to flow. b. the measure of the extent to which a fluid possesses this… …   Universalium

  • viscosity — ALASKA VOLCANO OBSERVATORY GLOSSARY A measure of resistance to flow in a liquid (water has low viscosity while honey has a higher viscosity.) GLOSSARY OF VOLCANIC TERMS A measurement of the ratio of shear stress to the rate of shear strain in a… …   Glossary of volcanic terms

  • viscosity — klampos koeficientas statusas T sritis Standartizacija ir metrologija apibrėžtis Apibrėžtį žr. priede. priedas( ai) Grafinis formatas atitikmenys: angl. coefficient of viscosity; dynamic viscosity; viscosity; viscosity factor vok. dynamische… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • viscosity — [1] A measure of an oil s ability to pour or be thick. Every container of oil is marked with the viscosity of the oil. Straight weight (also called single viscosity or single weight ) oil has a single number like 30 weight. A lower number means… …   Dictionary of automotive terms


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