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Old   June 20, 2005, 07:37
Default hydraulic diameter
  #1
David
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Hi,

I would like to know I'm using a periodic boundary condition so 1/10 of my cylinder is represented. By setting the turbulence parameters, do I need to set my hydraulic diameter to 1/10th of the full geometry or the full diameter itself?

thank you

David
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Old   June 20, 2005, 13:31
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Evan Rosenbaum
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Full Diameter
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Old   June 21, 2005, 04:54
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manolito
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Could you explain why to use full diameter?

Thank you in advance
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Old   June 21, 2005, 13:19
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Evan Rosenbaum
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FLUENT needs to have the hydraulic diameter to get an estimate of turbulent intensity. The size of the eddies is limited to the physical space available, and hydraulic diameter is a representative value.
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Old   June 22, 2005, 05:20
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manolito
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I got it. Thanks
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