Cavitation Number

Cavitation number, abbreviated Ca, is a dimensionless number that expresses the relationship between the difference of a local absolute pressure from the vapor pressure and the kinetic energy per volume.

 

Cavitation Number Calculator

Formulas that use Cavitation Number \(\large{ Ca = \frac { 2\; \left(p \;-\;p_v \right)   } {\rho\; U^2}  }\)    \(\large{Ca = \frac { \left(p \;-\;p_v \right)   } { \frac {1}{2} \; \rho\; U^2}  }\)     Where: \(\large{ Ca }\) = Cavitation number \(\large{ U }\) = characteristic velocity \(\large{ \rho }\)  (Greek symbol rho) = density of fluid \(\large{ p }\) = local pressure \(\large{ p_v }\) = vapor pressure