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Comparaison inviscid 3D Fluent/CFX/Xflr5/"in-house" code

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Old   April 8, 2013, 12:46
Default Comparaison inviscid 3D Fluent/CFX/Xflr5/"in-house" code
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I'm working on 3D CFD analysis of an airfoil and I compared the results obtained with several different codes.
That's my results for the aerodynamic coefficients :

mach = 0.10
alfa = 0

CL = 0.1357 (in-house code)
CL = 0.0548 (CFX)
CL = 0.0662 (Fluent)
CL = 0.1308 (XFLR5)

CM = -8.5438E-02 (in-house code)
CM = +2.2879E-02 (CFX)
CM = +3.3578E-02 (Fluent)
CM = -8.9100E-02 (XFLR5)

I don't understand why there is such a difference between Fluent's and Xflr5's results for an inviscid study.
I used the same mesh for the study with CFX and Fluent.
If someone can help me, it will be very appreciate. If you need more explanation, please ask me.


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