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[ICEM] O-grid mesh for NACA airfoil

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Old   February 6, 2015, 07:45
Wink O-grid mesh for NACA airfoil
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I am Sathya and this is my first post..

I am trying to do simulations for NACA airfoil for a surface roughness study. I have been generating hexa mesh in ICEM. I am new to Block Meshing. I did C-grid mesh by following Simon tutorials. But since i have to maintain y+ of 30 near the wall to BL calculations , I need to have 0.0001 for my first layer distance which degrades the orthogonal quality when smoothing. i attached pics of that. So I switched for O grid block mesh around airfoil.I increased the no of nodes near the leading edge to capture the curvature. I need help with meshing around the curvature of Leading edge. And also whether this type of grid around LE is recommended to go with.

I hope I am clear with description of the problem...

Can someone help me with this?

Thank you in advance.

Attached Images
File Type: jpg closeup_Cgrid_y+30.jpg (28.2 KB, 57 views)
File Type: jpg C-grd.jpg (78.6 KB, 80 views)
File Type: jpg ogrid.jpg (75.5 KB, 67 views)
File Type: jpg ogrid2.jpg (50.2 KB, 65 views)
File Type: jpg ogrid_LE.jpg (70.9 KB, 56 views)
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