SmartCaCompute

Quickly calculate Cauchy number (Ca) based on your fluid density, local fluid velocity, and bulk modulus
You can also quickly convert your density units, velocity units, and bulk modulus units
Cauchy number (Ca) is a dimensionless term for compressible flow in fluid mechanics, named after the French mathematician Augustine Louis Cauchy. When compressibility has a significant effect, it is also necessary to consider the elastic force when considering the inertia force of dynamic similarity, and the Cauchy number is the ratio of the inertia force of the fluid to the compressible force (elastic force).