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Liquid/gas flow through a venturi throat

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Old   June 15, 2015, 08:13
Default Liquid/gas flow through a venturi throat
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John Hu
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For a simple compressible ideal gas, we have the equation
P1 / P2 = (V2 / V1) ^ k
where P is pressure, V is volume and k is isentropic exponent.

If we have a liquid/gas flow through a venturi throat, and 1 and 2 denote the up- or down-stream and the throat, respectively, do we still have the same equation above for the gas phase?
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