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grids for flow over a square cylinder

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Old   April 19, 2009, 01:09
Default grids for flow over a square cylinder
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stud
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Dear Sir, could anyone tell me how to generate a non-uniform grid for flow over a square cylinder, grids should be clustered near the cylinder. Is there any formula?

Last edited by student; April 19, 2009 at 04:45.
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Old   April 19, 2009, 05:56
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Danial
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what cfd environment are you working in?

ps.
http://www.emeraldinsight.com/fig/1340140504013.png
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Old   April 20, 2009, 02:29
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Thank you for your reply,I have seen the grid you created. please tell sir how to create that grid. I am using finite difference method in c program
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Old   April 21, 2009, 00:09
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You need a hyperbolic tangent (or hyperbolic sine function) to cluster the grid points. You can find the exact expression in CFD- Wiki or in any CFD book.
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Old   April 21, 2009, 06:50
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Quote:
Originally Posted by student View Post
Dear Sir, could anyone tell me how to generate a non-uniform grid for flow over a square cylinder, grids should be clustered near the cylinder. Is there any formula?
I suggest that you exploit software of grid generation such as Gridgen, ICEM CFD, because time can be saved.
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