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Old   July 24, 2014, 03:02
Default How fast the pressure change
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Hatef Khaledi
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I have a pressurized pipe (230bar) which is opened to a way lower pressure tube (1 bar) through a valve. the pipe is filled with 2phase flow (gas and oil). I am looking for an explanation or formulation on how fast the pressure drops upstream the valve. I know pressure equation is of parabolic nature and parabolic equation has the property that the information propagates at arbitrary high speed.
Any reference or explanation is very much appreciated.

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pressure, pressurized

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