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Boundary condition for open (infinity) sky??

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Old   July 13, 2007, 08:10
Default Boundary condition for open (infinity) sky??
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Good afternoon,I am an engineering student. For my last exam I'm studyng the wind effects around a building using fluent. So, I have built the mesh grid in gambit but I have a problem. I am not sure which kind of bundary condition I have to put on the sky face and on the two side faces. I need to use symmetry condition or wall condition??

thanks for your help! RR
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Old   July 13, 2007, 08:56
Default Re: Boundary condition for open (infinity) sky??
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Fluent 6.3 tut 3
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Old   July 18, 2007, 16:43
Default Re: Boundary condition for open (infinity) sky??
red lemon
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Fixed total pressure of zero. Pressure inlet with 0Pa gauge relative to operating pressure.
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