March 17, 2023 at 1:11 pmSolutionParticipant
In ANSYS Fluent, when density is modelled using ideal gas law, it is recommended to use an operating density value of zero. In such cases, users need to be careful in setting up boundary conditions for pressure outlets/inlets. In natural convection cases, where minor density differences (due to temperature variations) cause the flow, choosing the right operating density would be important for good convergence. This documents provides guidelines in choosing the best operating density values for such cases using an example.
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