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Old   May 12, 2005, 10:16
Default problem about solve areocoefficients
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When I solved teh Areocoefficient of one aircraft by CFX5.7.1, I found it was different when I use M=0.4 and M=0.2.when teh Cl=0.398,Cd=0.0298, M=0.4:and the same case,Cl=0.357,Cd=0.0275,M=0.2.Why??

Regards W0er
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Old   May 13, 2005, 07:49
Default Re: problem about solve areocoefficients
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Those numbers are not far off what you would expect if you just applied the Prandtl-Glauert correction.
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Old   May 14, 2005, 09:19
Default Re: problem about solve areocoefficients
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Oh charles ,but i didn't get the results what differ from the Re number.
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