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Qrthogonal Quality of rotating sliding mesh keeps decreasing |
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September 18, 2014, 05:05
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Qrthogonal Quality of rotating sliding mesh keeps decreasing
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Xi
Join Date: Jul 2014
Posts: 2
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In fluent 14.0,I find the Qrthogonal Quality in the rotating area decreases slowly when I use sliding mesh.And Negative volumes appear near the rotating surface after about 1900 time steps.
Attached is a picture of mesh near the cylinder surface (after 1300 time steps). The rotating speed is 1250 rad/s , one time step is 2.5132e-5 s , the mesh is imported from Gridgen1518. Why rotating mesh becomes worse and worse? Could anyone give me some help please? 
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| qrthogonal quality, rotating cylinder, sliding mesh |
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