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low Mach flow over 3D cylinder

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Old   May 1, 2012, 12:42
Default low Mach flow over 3D cylinder
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Stephen Wornom
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Using a mesh with 274Kcells + wall function I get good agreement with experimental data for drag, cpbase, Cl', and the Strouhal number.

When I refine the mesh 1.2Mcells, the cpbase is too high thus the drag too low.
Has anyone observed similar behavior as the mesh is refined?

Code is 2nd-order space and time using a hybrid-LesWale turbulence model.
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