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On the far field boundary conditions.

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Old   January 10, 2005, 02:13
Default On the far field boundary conditions.
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mini
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During the simulation, I need to use the far field boundary conditions, i.e. free boundary conditions for the incompressible ideal gas, but in the Fluent, the pressure far field boundary conditions is only for the compressible ideal gas, so, I doní»t know what I should do. Help, please. Thanks.
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Old   January 10, 2005, 04:01
Default Re: On the far field boundary conditions.
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Luca
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What kind of simulation are you doing?an aircraft or car analysis?
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Old   January 10, 2005, 05:13
Default Re: On the far field boundary conditions.
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mini
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Far field of the jet, what should I do? thanks
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Old   January 10, 2005, 05:16
Default Re: On the far field boundary conditions.
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Luca
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Use the pressure-outlet BC.
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Old   January 10, 2005, 07:23
Default Re: On the far field boundary conditions.
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mini
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How can I set the pressure value?
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Old   January 11, 2005, 12:39
Default Re: On the far field boundary conditions.
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someone
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you're gonna get some reverse flow. so place the pressure outlets as far as you can.
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Old   January 11, 2005, 16:11
Default Re: On the far field boundary conditions.
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RIaan
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Use Pressure Far-field and set your gas to Ideal gas regardless.

If you suspect your flow mach number is low enough to avoid compressibility effects (Ma <0.3), you should still get the same solution even though you use the ideal gas/Pressure far field.

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Old   January 11, 2005, 20:53
Default Re: On the far field boundary conditions.
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mini
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I see. Thank you for you help.
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