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viscosity    音标拼音: [vɪsk'ɑsəti]
n. 粘质,粘性

粘质,粘性

viscosity
粘性

viscosity
n 1: resistance of a liquid to shear forces (and hence to flow)
[synonym: {viscosity}, {viscousness}]

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 interactions between the molecules of the fluid and
between the fluid and the walls of the conduit through
which it moves; also, a measure of such a property.
[1913 Webster PJC]

71 Moby Thesaurus words for "viscosity":
adhesiveness, bullheadedness, clabbering, clamminess, closeness,
clotting, coagulation, cohesiveness, colloidality, compactness,
congestedness, congestion, consistence, consistency, crowdedness,
curdling, denseness, density, doughiness, firmness, gelatinity,
gelatinousness, gluelikeness, gluiness, glutinosity, glutinousness,
gumlikeness, gumminess, hardness, heaviness, impenetrability,
impermeability, imporosity, incompressibility, incrassation,
inspissation, jammedness, jellification, jellylikeness, lentor,
mucilaginousness, obstinacy, pastiness, persistence, persistency,
relative density, retention, ropiness, slabbiness, sliminess,
snugness, solidity, solidness, specific gravity, spissitude,
stick-to-itiveness, stickiness, stodginess, stringiness,
stubbornness, syrupiness, tackiness, tenaciousness, tenacity,
thickening, thickness, tightness, toughness, treacliness,
viscidity, viscousness


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  • Viscosity - Wikipedia
    Viscosity is a measure of a fluid's rate-dependent resistance to a change in shape or to movement of its neighboring portions relative to one another [1] For liquids, it corresponds to the informal concept of thickness; for example, syrup has a higher viscosity than water [2]
  • Viscosity | Definition, Facts, Formula, Units, Examples | Britannica
    viscosity, resistance of a fluid (liquid or gas) to a change in shape, or movement of neighbouring portions relative to one another Viscosity denotes opposition to flow The reciprocal of the viscosity is called the fluidity, a measure of the ease of flow Molasses, for example, has a greater viscosity than water
  • Viscosity: Definition, Examples, and Formula - Science Facts
    Viscosity is a physical quantity that describes a fluid’s resistance to flow It is a property that resists the relative displacement of the different layers of the fluid It can be considered as the fluid friction occurring inside the fluid due to the internal friction between the molecules
  • Viscosity Definition and Examples - Science Notes and Projects
    Viscosity looks at the difference in the rate of flow or deformation between between molecules a certain distance from a surface and those at the liquid-surface interface Multiple factors influence viscosity
  • Viscosity – The Physics Hypertextbook
    Informally, viscosity is the quantity that describes a fluid's resistance to flow Formally, viscosity is the ratio of shearing stress to velocity gradient
  • What is Viscosity? - BYJUS
    Viscosity is a measure of a fluid’s resistance to flow The SI unit of viscosity is poiseiulle (PI) Its other units are newton-second per square metre (N s m -2 ) or pascal-second (Pa s )
  • Viscosity - Chemistry LibreTexts
    Viscosity can be not only a fluid’s resistance to flow but also a gas’ resistance to flow, change shape or movement The opposite of viscosity is fluidity which measures the ease of flow while liquids such as motor oil or honey which are “sluggish” and high in viscosity are known as viscous One may ask the question of what is actually
  • Viscosity - Simple English Wikipedia, the free encyclopedia
    Viscosity is a physical property of fluids It shows resistance to flow [1] In a simple example, water has a low viscosity, as it is "thin" Syrup and tar, on the other hand, have a high viscosity, as they are "thick" A way to test for viscosity is the speed at which the substance runs down a slope Syrup would reach the bottom very slowly
  • What is Viscosity? | Factors Affecting Viscosity - What Is Piping
    Viscosity is defined as the measure of a fluid's resistance to fluid flow under an applied force For a fluid in motion, the viscosity describes the internal friction So, a fluid having large viscosity provides more internal friction to resist flow whereas a fluid with lower viscosity provides little friction
  • Viscosity: Core Concepts in Fluid Mechanics Engineering
    Viscosity is more than a fluid property—it’s a driving force in mechanical engineering, shaping how systems handle motion and stress Understanding it unlocks smarter designs, from smoother flows to tougher machines





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