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The SI unit of kinematic viscosity is square meter per second (m 2 /s), whereas the CGS unit for kinematic viscosity is the stokes (St, or cm 2 ·s −1 = 0.0001 m 2 ·s −1), named after Sir George Gabriel Stokes. [29] In U.S. usage, stoke is sometimes used as the singular form.
Kinematic Viscosity. Kinematic viscosity is the ratio of - absolute (or dynamic) viscosity to density - a quantity in which no force is involved. Kinematic viscosity can be obtained by dividing the absolute viscosity of a fluid with the fluid mass density like. ν = μ / ρ (2) where
Kinematic Viscosity The ratio of the absolute viscosity of a liquid to its density frequently occurs in the study of viscosity and hydraulics and the term "kinematic viscosity" with the symbol V has been assigned to it where p is the density.
Kinematic viscosity is the resistive flow of fluid under the action of gravity. Two fluids having the same dynamic viscosity can have different kinematic viscosities. The reason is that kinematic viscosity depends on the density of the fluid.
In essence, kinematic viscosity is a measure of the resistive flow of a fluid under the influence of gravity. It is frequently measured using a device called a capillary viscometer — basically a graduated can with a narrow tube at the bottom.
Kinematic viscosity is measured in units of (length) 2 /time – most commonly using centiStokes (cSt), where 1 Stoke = 1 cm 2 /s. When used in this equation, the viscosity μ is often referred to as dynamic viscosity or absolute viscosity.
The dynamic viscosity coefficient divided by the density is called the kinematic viscosity and given the Greek symbol nu. nu = mu / r Re = V * L / nu The units of nu are length^2/sec. Here's a Java program to calculate the coefficient of viscosity and the Reynolds number for different altitude, length, and speed.
The kinematic viscosity formula is expressed as, ν = μ/ρ. Where μ= absolute or dynamic viscosity, ρ = density. Solved Examples. Problem 1: A fluid with absolute viscosity of 0.98 Ns/m 2 and kinematic viscosity of 3 m 2 /s. Determine the density of fluid? Answer: Given. Absolute viscosity μ = 0.98 Ns/m 2. kinematic viscosity ν = 3 m 2 /s ...
The kinematic viscosity embraces both the viscosity and density properties of a fluid. The above equation shows that the dimensions of \(\nu\) to be square meter per second, \([m^2 / sec]\), which are acceleration units (a combination of kinematic terms).
The SI unit of kinematic viscosity is usually given simply as m 2 s −1, and 1 m 2 s −1 = 104 stokes. The kinematic viscosity of water varies from about 1.8 centistokes (1.8 - 10 −6 m 2 s −1 ) at \(0 \circ \) C to about 0.3 centistokes (3 - 10 −7 m 2 s −1 ) at \(100 \circ \)C.