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Old   February 4, 2010, 17:22
Default 2d natural convection
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I'm trying to model a 2D natural convection problem that seems simple, but my solution won't converge.

i have a 2D square. left wall = hot ; right wall = cold ; top and bottom walls are adiabatic.

air is the fluid in the cavity and i have set its material properties as polynomial functions of temperature.

i want to show the natural circulation temperature profile, but i can't get my solution to converge.

can anyone help, please?
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