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measure viscosity

См. также в других словарях:

  • 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 index — is a petroleum industry term. It is a lubricating oil quality indicator, an arbitrary measure for the change of kinematic viscosity with temperature. The viscosity of liquids decreases as temperature increases. The viscosity of a lubricant is… …   Wikipedia

  • Viscosity (disambiguation) — Viscosity is the measure of the resistance of a fluid to deform under either shear stress or extensional stress. It is commonly perceived as thickness , or resistance to pouring.It can also refer to the following: * Viscosity (programming) a… …   Wikipedia

  • 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 — /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 index — [1] (VI) A measure of how the viscosity of a liquid (especially oil) changes with temperature: the higher the VI, the smaller the change of viscosity with temperature [2] A measure of an oil s ability to resist changes in viscosity when heated …   Dictionary of automotive terms

  • 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

  • measure — I (New American Roget s College Thesaurus) n. quantity, extent; gauge; standard; amount, allot ment; [legislative] bill; step, course. See measurement, apportionment, degree, rule. II (Roget s IV) n. 1. [A unit of measurement] Syn. dimension,… …   English dictionary for students

  • 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

  • viscosity index — noun : an arbitrary number assigned as a measure of the constancy of the viscosity of a lubricating oil with change of temperature such that a high index indicates that the viscosity changes little with temperature * * * Auto., Mach. an arbitrary …   Useful english dictionary

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