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-   -   Grid generation (http://www.cfd-online.com/Forums/star-ccm/84855-grid-generation.html)

Sen February 10, 2011 05:11

Grid generation
 
Hi
I am using Star ccm+ for a project on flat back airfoils and its just a 2D analysis . How to generate grid using Star ccm + and is there any criteria for creating a fluid domain around the airfoil prior to grid generation? Can anyone please guide me on these issues ?

Thank you,
Sen

willimanili February 10, 2011 06:52

There are two ways how to obtain a 2D-mesh.

1) Import a real 2D-mesh.

2) Create a 3D-mesh and convert it into a 2D-mesh. But be sure that your 3D-mesh has got the correct position, because CCM+ always convert the XY-plane (Z=0) into a 2D-mesh.

Best regards,
Max

Sen February 10, 2011 08:31

Well thanks Max ..

n.p February 24, 2012 18:07

Hi everyone, I want this lectute for my project, can enyone help me find it? " Joe.F.Thompson, Numerical solution of flow problems using Body-Fitted coordinate systems" , " lecture series in computational fluid dynamics" . Belgium ( 13-17 March 1978)

abdul099 March 4, 2012 16:05

Quote:

Originally Posted by Sen (Post 294608)
... and is there any criteria for creating a fluid domain around the airfoil prior to grid generation?

Just don't make it too small. Let's say a cylindrical domain with a diameter of at least 10x chord length. Better 20x or 30x. Cells far from the airfoil surface can get pretty large, so that won't have too much impact on the cell count.


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