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Next: 3 Isentropic Flow Up: 2 Speed of Sound Previous: 2.4 Speed of Sound

2.5 Sound Speed in Two Phase Medium

For flow of mostly gas with drops of the other phase (liquid or solid)

Let

$\displaystyle {\rho \over \rho_a} = 1 + m$ (8)

where $ m = {\dot{m}_b \over \dot{m}_a}$ is mass flow rate per gas flow rate. and the subscript a is for the gas phase and b for the liquid or solid phase.

The equation of state is

$\displaystyle {P \over \rho} = { R \over 1 + m} T$ (9)


where


and $ R_{mix} = { R \over 1 + m}$



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