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BC for Subsonic external flow

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Old   November 2, 2009, 10:03
Post BC for Subsonic external flow
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Neo
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Hello Users~!

I want to solve the external flow around 2D airfoil in subsonic area.
In this case, the segrated solver for the problem was chosen and incompressible ideal-gas was used as a material.
For boundary condition, I'm supposed to apply the pressure-farfield to the far-field. But Flent gave the warning signal that said the pressure-farfield cannot use with incompressible-farfield.
Then how can i handle the far-field boundary on C region of C grid type in the subsonic flow.
Share your knowledge.

Thanks.
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Old   November 3, 2009, 07:35
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reza
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hello
it is better to use coupled solver of fluent because it is better for pressure far field boundary condition.
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Old   November 3, 2009, 08:43
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Dear Greeneye
As i mentioned before, the flow problem is of subsonic regime.
Actually the flow velocity is 30m/s.
I understood that in a subsonic flow i've to use the segrated solver based on pressure.
Does it matter that i use the coupled solver for the subsonic flow?
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