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nusselt number in a cavity

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Old   June 25, 2015, 06:36
Default nusselt number in a cavity
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I am working on fluent to compute the heat transfer analysis in a differentially heated cavity

The model is 2d with vertical walls having different temperatures and adiabatic boundary on the other two sides with air as the fluid enclosed in it .

How to compute the average nusselt number for the cavity (Is the method of using the surface integrals correct )
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