cauchy nombre: formule, mach relation et calculatrice

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

Notes

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

References

• Original Source