Definition - What does Kinematic Viscosity mean?
Kinematic Viscosity is the ratio of dynamic viscosity to the density of fluid. It is generally measured by making a fluid sample to flow through an orifice in a capillary tube which is under gravitational force. This method of recording the Kinematic Viscosity of a fluid is used widely in laboratories and is defined by ASTM D445.
Petropedia explains Kinematic Viscosity
Viscosity is one of the important physical properties of oil. It is analyzed in laboratories in order to know the oil condition and its lubricating properties. Kinematic Viscosity is denoted by the Greek letter nu (v). The formula for Kinematic Viscosity is as follows:
= Kinematic Viscosity
= dynamic viscosity
= density of fluid
The SI unit of kinematic viscosity is meter square/second (m2/s). It is also expressed in terms of Centistokes (cSt) and it equals to 1 millimeter square per second.
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