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Validation NACA 2412

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Old   May 19, 2021, 11:12
Unhappy Validation NACA 2412
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Danijel
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Hi guys,

I'm doing a validation of the NACA 2412 profile at Re=2200000. I used a C-grid with 20 chords in the front and 50 on the back. I did a first structured mesh with 60000 and 180000 knots using an adapted bias in order to have y_plus<1.

However, the results regarding Cl and Cd are so different when using K-q SST and SST transitional.

60000 nodes K-W: Cl=0.21314 and Cd=0.009669
60000 nodes SST transitional: Cl=0.23374 and Cd=0.0047277

180000 nodes K-w: Cl=0.21335 and Cd=0.0096094
180000 nodes SST transitional: Cl=0.23549 and Cd=0.0046394

The results of K-w SST are much more similar to the experimental ones. Could there be any problem regarding the mesh, geometry or the boundary condition?
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