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node number vs convergence

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Old   June 22, 2011, 11:55
Default node number vs convergence
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Im running a 2D airfoil at M=0.8 and Re=6.5E6 and ive noticed that with 40,000 nodes or around there a solution is calculated on the mesh and accuratly but now im running my grid independance study and i tried doubling and tripling my node count and found that the solution diverged. I was wondering why this would be the case that with a higher node count the case would diverge
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Old   June 22, 2011, 12:25
Nuno Gomes
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maybe your mesh quality get should see the skewness and try to be below of 0,84
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