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Density-based v/s Pressure based

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Old   May 8, 2013, 01:51
Default Density-based v/s Pressure based
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Hi everyone,
I am new to CFD, and of course to Ansys Fluent. I am trying to simulate room ventilation due to buoyancy. Experimental results show that due to electronics gadgets present in a room the temperature near the room ground surface increases(assume uniform flux from ground surface). So there will be a density variation and circulation starts. If there is a window and door arrangement, then there will be an air flow across the room. To simulate this do i need to select Pressure-based solver or density based solver. ?? Please give suggestions.
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density& pressure-based

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