Cavitation number

参考数据与工程 information about cavitation number 用于 fluid mechanics applications.

cavitationnumber计算器

Overview

The cavitation number ( $Ca$ ) predicts the onset of cavitation in fluid systems. When the local pressure drops below the vapor pressure, cavitation bubbles form.

Variables

Symbol	Description	Unit
$Ca$	Cavitation number	—
$P$	Local static pressure	Pa
$P_v$	Vapor pressure	Pa
$\rho$	Fluid density	kg/m³
$v$	Flow velocity	m/s

Formula

$Ca = \frac{P - P_v}{\frac{1}{2}\rho v^2}$

Calculator

Cavitation Number Calculator

Static Pressure(kPa)

Vapor Pressure(kPa)

Fluid Density(kg/m³)

Flow Velocity(m/s)

Notes

Results are approximate and should be verified for critical applications
Input values should be within reasonable engineering ranges

References

Original Source

来源: engineeringtoolbox.com