Capillary Number

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Capillary Number

Capillary number ( \(Ca\) ) (dimensionless number) is the ratio of viscous forces to surface tension forces.

Capillary Number FORMULA

\(\large{ Ca = \frac { \mu v }  { \sigma } }\)                 

Where:

\(\large{ Ca }\) = Capillary number

\(\large{ \mu }\)  (Greek symbol mu) = dynamic viscosity

\(\large{ v }\) = fluid velocity

\(\large{ \sigma }\)  (Greek symbol sigma) = shear tension

 

Tags: Equations for Fluid