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arash_7444 September 8, 2010 14:49

Inviscid flow on blade does not converge, why??
Dear all,

I simulate a stationary blade in inviscid flow but the solution does not converge. the problem is on Continuity residual because it is not going lower than 10e-2.

do you have any Idea or suggestion?

thanks in advance

arash_7444 September 10, 2010 08:53

Also I think my mesh Quality is fine enough (Maximum Equiangle Skewness is 0.86) and I used POINTWISE in order to mesh my geometry.

in fluent, I tried all of the numerical scheme such as first order upwind scheme or Quick Sheme .... :-(

srr September 14, 2010 00:43

All the time I have convergence problems I check the wall y+, it usually shows the cells where the problem exists (where it is really high y+ values), so I introduce a mesh density it that point to improve quality. Your skewness is good, but there might be a problem with aspect ratio, squish, ....

I hope this help you

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