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convergence problem and y+ criteria

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Old   July 13, 2006, 09:20
Default convergence problem and y+ criteria
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vadivelan
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hi

1. I am running fluent for external Aerodynamics. I got converged solution for coarse grid.Whin I refined the grid to satisfy Y+ criteria the residual is not converging Even the Force Coefficient is also oscillating.

2. Even though Y+ value is as high as 500. I am getting reasonable match in Force coefficient values foe Spallart ALLMARAS Model. Is Y+ is meaningless?

please answer me. Thanx.

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