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2-D grid around airfoil in Gambit

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Old   November 2, 2009, 07:41
Default 2-D grid around airfoil in Gambit
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laurryn
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I want to make 2-D grid around airfoil in Gambit, but I don't know which types a the better - C-grid, O-grid, H-grid or other or hybrid.
Also I don't know what must be the farfield size.

Can anyone help me?

Thanks..
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Old   November 3, 2009, 18:00
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C grid wud be good for structured mesh
farfiled size- 15c for subsonic flow
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Old   November 5, 2009, 05:53
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Why the farfiled size is 15c...
Where can I read about it.
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Old   November 5, 2009, 18:02
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read the pre-farfiled BC from help files, it recomends 20c for external flows,
for subsonic flow (mycase) 15c isl wrking....
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