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pressure field problem.

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Old   March 18, 2004, 12:05
Default pressure field problem.
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I'm working on problem of natural convection.(a tank with water inside,heated trom bottom) If I use bussinesq model of density everything is ok. The problem begins when I use polynominal ,piecewise-linear, or piecewise-polynominal model. The the static pressure field should grow with -Z direction , but in the middle of tank I have divergence. The problem exists even with high Ra.numbers. For every send message thanks a lot.

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Old   March 18, 2004, 14:45
Default Re: pressure field problem.
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I don't have much experience in natural convection modelling, but what is your pressure differencing scheme? I believe there is an option that is better for problems with substantial body-forces than the default.
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