Cauchy number

Reference data と engineering information about cauchy number for fluid mechanics applications.

cauchynumber計算機

Overview

The Cauchy number ( $Ca$ ) is a dimensionless number relating inertial forces to elastic forces in compressible flow. It is the square of the Mach number.

Variables

Symbol	Description	Unit
$Ca$	Cauchy number	—
$\rho$	Fluid density	kg/m³
$v$	Flow velocity	m/s
$K$	Bulk modulus	Pa

Formula

$Ca = \frac{\rho v^2}{K} = Ma^2$

Calculator

Cauchy Number Calculator

Fluid Density(kg/m³)

Flow Velocity(m/s)

Bulk Modulus(GPa)

Notes

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

References

Original Source

出典: engineeringtoolbox.com