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Bad cd at high angles of attack | 2d airfoil

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Old   August 18, 2015, 08:44
Default Bad cd at high angles of attack | 2d airfoil
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I am simulating a 2d airfoil (Naca 64A010) and I got very good results with SST transitional mode, but as of 8º I got a bad cd compare to experimental results, as you can see in the picture I've uploaded.

I have tried almost everything but I can't get good results at high AoA.

Now I was wondering if it because in the experimental results they have an open trailing edge, and my simulation is with a closed trailing edge.

My parameters are
Transient, Step size: 0.001 Max iterations: 10
C-Mesh 150000 cells (15c front x 20c back) orientating the back part of the mesh ~ half AoA

Thank you¡¡
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