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Case check - Velocity-Inlet not compatible with compressible flows

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Old   September 15, 2009, 07:16
Question Case check - Velocity-Inlet not compatible with compressible flows
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Fluent case-check reports: Change inlet boundary conditions. Velocity-Inlet boundary conditions are not compatible with compressible flows.

Actually there's no compressible flow defined. Defined fluid is a mixture consisting of hydrogen and carbon-dioxyde, both with constant density and volume-weighted-mixing-law defined for the mixture.

Does anybody know the reason for this problem?

kind regards
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Old   September 15, 2009, 08:36
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In the available materials in fluid panel air is still there (as default). Maybe there you set compressible density before.
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Old   September 15, 2009, 08:46
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Thanks for your fast answer, but i think you didn't get the problem. Maybe my description was bad.

The problem does not concern the fluid or mixture, i don't understand the cited case-check message from fluent, because there doesn't exist any compressible flow in the domain.

Last edited by fluent-user; September 15, 2009 at 10:09.
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