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High Values of Cl,Cd,Cm

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Old   February 3, 2009, 17:19
Default High Values of Cl,Cd,Cm
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taimoor
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Hi EVERYONE

I m doing cfd analysis on a Grid fin at 2.5 mach, 0 aoa, S-A coupled convergence is acieved but values of Coefficients of lift,drag,moment are too high i-e 10,40,300 respectively even after many checks and proper step following.Values must be approx <=1.Can anybody tell me about that problem (why and what to do). please reply ASAP
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Old   February 4, 2009, 03:00
Default Re: High Values of Cl,Cd,Cm
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Charles
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You need to set the reference area, velocity & density correctly, under the "Report" menu.

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