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Old   January 29, 2003, 18:01
Default cavitation
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Has anyone tried to model cavitation using PHOENICS? I was not able to find any library case. Is there any? Can it be done using PHOENICS?
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Old   March 31, 2003, 07:41
Default Re: cavitation
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PHOENICS does not have a built-in cavitation model, but the generic nature of the software makes it possible for the user to introduce his own model. For example, a simple cavitation model was employed for a liquid-pump application over two decades ago. This model employed a single-phase approach with the mixture density determined from the local state of the gas-liquid mixture. In other words, PHOENICS will solve conservation equations that compute the local pressure and temperature, and these can be used to obtain the gas and liquid saturation enthalpies (from the phase map/table) and the liquid mass fraction.

More complex models can be envisaged based on single or two-phase approaches involving the solution of species equations for the condensible vapour (and any non-condensables that may be present) with empirical expressions for the interphase mass transfer rates due to vaporisation and condensation.

The cavitation model can be introduced into the default single- or two-phase models of PHOENICS by using PLANT, INFORM or GROUND to generate the necessary coding sequences.

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