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[ANSYS Meshing] Inflation layer mesh quality

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Old   June 30, 2014, 10:22
Unhappy Inflation layer mesh quality
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Nick Prendergast
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Hi everyone.

I have a problem where I'm meshing a delta wing, looking at vortex lift. I'm using the inflation layers to get Y+=1. The problem is my orthogonal mesh quality in the inflation is awful. Is there a way to conserve quality while keep the Y+=1 Any help or tips would be greatly appreciated.

Nick
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File Type: jpg general mesh small.jpg (95.1 KB, 77 views)
File Type: jpg mesh at leading edge(small).jpg (93.4 KB, 87 views)
File Type: jpg poor mesh quality area(small).jpg (47.3 KB, 78 views)
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Old   July 2, 2014, 09:10
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Nick Prendergast
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update: I found out the reason for the poor quality is the fact that the end points of the inflation layer is fixed at both ends. I need a 2 stage boundary condition around the wing
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Old   August 19, 2015, 03:29
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Erwin
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Hi Nick.

Would you mind expanding a bit on your solution? I am having the same inflation issues at the tip of my aerofoil.

Thanks,
Erwin
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Old   August 19, 2015, 05:20
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Hi Erwin

I created a split in mesh which aligned with the sharp leading edge. The effect was that instead of the all 5 inflation layer cells having to all converge on the leading edge, they could then spread themselves out appropriately which gave me better mesh quality.

This only worked because of the symmetry of my airfoil. If yours isn't symmetrical like mine, you might have to do something more complex. If you can attach a picture of what you are trying to mesh I might be able to help.

Nick
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