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David June 20, 2005 06:37

hydraulic diameter

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


Evan Rosenbaum June 20, 2005 12:31

Re: hydraulic diameter
Full Diameter

manolito June 21, 2005 03:54

Re: hydraulic diameter
Could you explain why to use full diameter?

Thank you in advance

Evan Rosenbaum June 21, 2005 12:19

Re: hydraulic diameter
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.

manolito June 22, 2005 04:20

Re: hydraulic diameter
I got it. Thanks

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