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OF pressure units???

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Old   June 20, 2016, 14:18
Default OF pressure units???
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Sheikh Ahmed
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Dear Foamers
I have a very fundamental question for which I need your suggestions. Does the pressure unit in OF always rho-normalized, I mean P/rho with the unit of
[0 2 - 2 0 0 0]?? For any kind of solver, if I want to apply, say atmospheric pressure, do I need to divide that with the rho to convert kg/m-s2 to m2/s2??

Any of your suggestion is highly appreciated.
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Old   June 20, 2016, 15:38
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Sheikh Ahmed
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Anybody please help me giving any of your suggestions on it.
Thanks in advance.
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Old   June 20, 2016, 15:45
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Hi Ahmed,

Most of the solver in openfoam use p without division by rho,

but solvers in openFOAM/solvers/incompressible use of p/rho.

if you want, you can modify the solver and use of p with kg/ms2 dimension.
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Old   June 20, 2016, 16:40
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Thanks Hesam for the info. Do you know how to spit out 'rho' or 'viscosity' in OF? The value can tell about the unit.
Please reply any of your suggestions.
Thanks.
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