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Water Hammer in a pipe

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Old   October 7, 2008, 04:23
Default Water Hammer in a pipe
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Pericu
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Hi, I would like to know how to model the water hammer effect on a pipe with water and a valve which closes suddenly. I know I should model it as a compressible and transient flow but need a fluid structure interaction model or just a CFD model is enough to determine maximum pressures? Cheers

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Old   October 8, 2008, 10:01
Default Re: Water Hammer in a pipe
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chandra manik
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I agree with you to analyze it in transient condition, about interaction, i think you have to perform the UDF of moving mesh, but i prefer to UDF where you can state the speed when valve closed or open so you can see the change in pressure where deeply recognized as " water hammer"

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