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Old   March 23, 2011, 03:48
Unhappy boundary conditions
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abdul azis
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velocity inlet turbulence, specification method for sedan geometry on wind tunel,,turbulenct intensiity value and turbulent length scale for value at velocity inlet?how much i predict this value??

and the outlet???
please help...
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Old   March 23, 2011, 07:04
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Robert
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Prowide us with some more detailed data. What type of wind tunel is this? What is air speed. Turbulence modeling is always very baffling.
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Old   March 24, 2011, 02:44
Unhappy detail data
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i use the bmw 320i sedan for my basic geometry,the valid Cd is 0,26, i want use viscous model k-omega SST,,velocity magnitud 25-30 m/s.. area = 2.08 m2, length wind tunel = 23.32 m, turbulence specification method = intensity and length scale,,but i don't know the value T I and Length scale must i predict..to get Cd 0,26,, and than i redesign the sedan geometry for get optimal value Cd,,this for my thesis,,please help...
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