grids for flow over a square cylinder

student · April 19, 2009, 02:09

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?

ifsibot · April 19, 2009, 06:56

what cfd environment are you working in?

ps.
http://www.emeraldinsight.com/fig/1340140504013.png

student · April 20, 2009, 03:29

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

harishg · April 21, 2009, 01:09

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.

Leining D · April 21, 2009, 07:50

Quote:

Originally Posted by student

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.

April 19, 2009, 02:09	grids for flow over a square cylinder	#1
student New Member stud Join Date: Mar 2009 Posts: 8 Rep Power: 17	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 05:45.

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April 19, 2009, 06:56		#2
ifsibot New Member Danial Join Date: Apr 2009 Posts: 12 Rep Power: 17	what cfd environment are you working in? ps. http://www.emeraldinsight.com/fig/1340140504013.png

April 20, 2009, 03:29		#3
student New Member stud Join Date: Mar 2009 Posts: 8 Rep Power: 17	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

April 21, 2009, 01:09		#4
harishg Senior Member N/A Join Date: Mar 2009 Posts: 189 Rep Power: 17	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.