Euler number (physics)
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(Redirected from Cavitation number)
The Euler number or cavitation number is a dimensionless number used in flow calculations. It expresses the relationship between a flow's pressure and kinetic energy, and is used to characterize the potential of the flow to cavitate. It is named for Leonhard Euler.
It is defined as
- <math>
\mathit{Ca}=\frac{p-p_v}{\frac{1}{2}\rho V^2} </math>
where
- <math>\rho</math> is the density of the fluid.
- <math>p</math> is the local pressure.
- <math>p_v</math> is the vapor pressure of the fluid.
- <math>V</math> is a characteristic velocity of the flow.
[edit] See also
- Reynolds number for use in flow analysis and similarity of flows
- List of topics named after Leonhard Euler
[edit] Reference
- Batchelor, G.K. (1967). An Introduction to Fluid Dynamics. Cambridge University Press. ISBN 0-521-09817-3
