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natural convection problem
Posted 25 nov. 2015, 22:33 UTC−5 Fluid & Heat, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD) Version 5.1 0 Replies
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I am doing a simple natural convection flow problem in a rectangular cavity. Gravity is in the negative y (vertical) direction. There are two inlets and two pressure outlets. This is shown in attached.
Since outlet is very small, I am expecting the pressure inside the cavity to be uniform at 1200Pa and that the flow will escape the two outlets on the right. However, this is not what I am getting. The flow exits the rectangle from the upper outlet but I have flow coming INTO the rectangle from the bottom outlet. I am very puzzled as why this is happening. By right the flow should escape from both top and bottom pressure outlets. Anyone knows why?
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Hello EH Ooi
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