Kinematic Viscosity

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

Kinematic viscosity, abbreviated as \(\nu \) (Greek symbol nu), is the ratio of dynamic viscosity to density or the resistive flow of a fluid under the influance of gravity.    

 

Kinematic viscosity formula

\(\large{ \nu = \frac{\mu}{\rho}  }\) 

Where:

 Units English SI
\(\large{ \nu }\)  (Greek symbol nu) = kinematic viscosity \(\large{\frac{ft^2}{sec}}\) \(\large{\frac{m^2}{s}}\)
\(\large{ \rho }\)  (Greek symbol rho) = density \(\large{\frac{lbm}{ft^3}}\) \(\large{\frac{kg}{m^3}}\)
\(\large{ \mu }\)  (Greek symbol mu) = dynamic viscosity \(\large{\frac{ft-lbf}{ft^2-sec}}\) \(\large{ Pa-s }\)

 

Related Kinematic Viscosity formulas

\(\large{ \nu =  Pr  \;  \alpha  }\)  (Prandtl number
\(\large{ \nu =  Sc \; D_m  }\) (Schmidt number

Where:

\(\large{ \nu }\)  (Greek symbol nu) = kinematic viscosity

\(\large{ D_m }\) = mass diffusivity

\(\large{ Pr }\) = Prandtl number

\(\large{ Sc }\) = Schmidt number

\(\large{ \alpha }\)  (Greek symbol alpha) = thermal diffusivity

 

Tags: Equations for Viscosity