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taimoor February 3, 2009 17:19

High Values of Cl,Cd,Cm

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

Charles February 4, 2009 03:00

Re: High Values of Cl,Cd,Cm
You need to set the reference area, velocity & density correctly, under the "Report" menu.

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