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Old   March 2, 2008, 09:57
Default Incompressible
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selim
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Hi, I want to simulate laminar transient flow with air. I want to use temperature independent flow properties and constat density. Air at 25 work here? Also the energy would be total or thermal?

Thanks, --Selim
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Old   March 2, 2008, 12:59
Default Re: Incompressible
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sam
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For the incompressible solution, you will use the option of isothermal and use 25C as temperature with the laminar flow model.

Good Luck.
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Old   March 2, 2008, 13:03
Default Re: Incompressible
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selim
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My problem involves heat transfer I want to use temperature independent material properties. Thanks, --selim

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Old   March 2, 2008, 18:00
Default Re: Incompressible
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Rogerio Fernandes Brito
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just choose laminar flow, if you have low values of velocities! Try calculating the Grashof number (if you have natural convection) or Reynolds number (if you have forced convection).
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Old   March 2, 2008, 18:04
Default Re: Incompressible
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Rogerio Fernandes Brito
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donīt you forget to make a validation of cfx software with experimental data! I recommend you using hexa mesh!
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