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boundary condition in natural ventilation

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Old   August 10, 2005, 13:53
Default boundary condition in natural ventilation
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modrio
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I am working with fluent in natural ventilation problem, with Boussinesq aproximation. I have a heat source, and I want to get solution without definning inlet and outlet boundary conditions. I think that the heat source must to force the air flow within the domain. Is it possible to simulate with fluent? How? I don't want to define velocity or pressure at the inlet, because I think this seting will have a decisive influence in the flow field.

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Old   August 11, 2005, 12:22
Default Re: boundary condition in natural ventilation
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Evan Rosenbaum
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You will have to set the pressure for the inlet. FLUENT will deal with the elevation effects automatically. The inlet pressure will not have a big effect.
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Old   August 11, 2005, 12:29
Default Re: boundary condition in natural ventilation
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modrio
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I define pressure-inlet with 0 gauge total pressure at inlet, and 0 gauge pressure at the pressure-outlet.

Thank you for your kindness
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