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Old   October 16, 2013, 12:19
Default Cavitation model
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Nguyen Thanh
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How to simulate Cavitation model in Flow 3D? Can you help me?
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Old   October 17, 2013, 11:00
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Jeff Burnham
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Do you need to model the actual bubbles forming and collapsing, or just find out where cavitation will occur? If you need to model the actual cavities (because they change the flow path around the cavitating object), then use the full cavitation model, and specify PCAV = cavitation pressure and CAVRT = characteristic cavity formation time = 0.001 second. The model will run very slowly. If you just want to know where cavitation will occur, either use the 'Cavitation Potential' model, or just look at pressure output around your objects of interest.
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Old   October 20, 2013, 03:48
Default How about Cavitation potential value?
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Nguyen Thanh
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I have the value of Cavitation potential in my simulation but I do not understand about this value.
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Old   October 21, 2013, 10:37
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Cavitation Potential is a cell-by-cell value that is the time-integral of the magnitude of the difference between local cell-centered pressure and user-specified cavitation pressure. It is the sum of that difference for all time steps where the local pressure is less than the cavitation pressure. Because the units are pressure x time (dt), they are the same as dynamic viscosity.
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