viscosity

viscosity Definition

vis·cos·ity (vis käs′ə tē)

noun pl. -·ties

the state or quality of being viscous
1. Physics the internal friction of a fluid which makes it resist flowing past a solid surface or other layers of the fluid: symbol, η
2. a measure of this; specif., a number indicating the ability of a motor oil to maintain its viscosity with seasonal changes of temperature

Etymology: ME viscosite < ML viscositas

viscosity Synonyms

stickiness, viscidity, mucosity, sliminess; see coherence 1, thickness 1.

viscosity Usage Examples

Preposition: of

polymer: This affects the ability of the bonds to rotate, and also the viscosity of the bulk polymer.
paste: A change in temperature will cause the viscosity of the solder paste to change.
liquid: Standard in the ink-jet printing world is to measure the shear viscosity of the liquid.
fluid: The viscosity of the fluid applies a damping force to the system.

Converse of object

decrease: Increasing ionic strength and reducing pH both decrease the viscosity as they cause the polymer to become more coiled.

Adjective modifier

extensional: These values can be related to the extensional viscosity of the material [ 8, 9 ] .
kinematic: Reynolds Number may also be expressed using the kinematic viscosity of the fluid, where.
turbulent: The variation in turbulent viscosity within an atmospheric flow field impinging on a building.
dynamic: The influence of temperature also affects the dynamic viscosity of the air.
fluid: The friction in a lubricated bearing is directly related to the fluid viscosity.
low: A wide particle size distribution usually gives a lower viscosity than narrow due to better particle packing.

Modifies a noun

modifier: This does not help the racing engine, that might destroy a viscosity modifier in minutes of high speed running.
coefficient: VR = # , defines the viscosity rule to be applied in setting the viscosity coefficient VC.
fluid: The higher viscosity fluids are more suited for fork use.
liquid: The ultimate example of a high viscosity liquid is glass.

Noun used with modifier

shear: Standard in the ink-jet printing world is to measure the shear viscosity of the liquid.
eddy: Numerical Equations These are based on the diffusion equation in one dimension, where is the eddy viscosity.
plasma: The ESR or plasma viscosity is the simplest guide.
resin: Resin viscosity is the critical parameter in producing fiber composites with low void content.
blood: At baseline, plasma and blood viscosity were related to risk factors, CHD measures, and claudication.

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