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-   -   Refining mesh along an edge at an intersection ? (http://www.cfd-online.com/Forums/star-ccm/99212-refining-mesh-along-edge-intersection.html)

mmn1239 March 28, 2012 15:25

Refining mesh along an edge at an intersection ?
 
Hey guys,

So I am refining a mesh for external flow over a plane. I imported the entire body as one region and one body and then I split by patch to define specific regions of the body (wings, tail, etc.) as different boundaries. I'm having issues with the mesh along the edge where the wing intersects the fuselage.

How can I refine my mesh along that edge of intersection - is there a specific "split by" operation that would works better than others?

Thanks!

Mike

rwryne March 28, 2012 15:32

Quote:

Originally Posted by mmn1239 (Post 352003)
Hey guys,

So I am refining a mesh for external flow over a plane. I imported the entire body as one region and one body and then I split by patch to define specific regions of the body (wings, tail, etc.) as different boundaries. I'm having issues with the mesh along the edge where the wing intersects the fuselage.

How can I refine my mesh along that edge of intersection - is there a specific "split by" operation that would works better than others?

Thanks!

Mike

Separate that edge's curve into its on Feature Curve. Then, at the region level, you can specifcy a mesh size specifically on that curve.

mmn1239 March 28, 2012 15:42

OK, how would you recommend separating that edge's curve into its on feature curve? As of now only the two bodies are defined as boundaries - sorry still fairly new to Star-CCM+.

Thanks again,

Mike

rwryne March 29, 2012 08:47

Quote:

Originally Posted by mmn1239 (Post 352012)
OK, how would you recommend separating that edge's curve into its on feature curve? As of now only the two bodies are defined as boundaries - sorry still fairly new to Star-CCM+.

Thanks again,

Mike


Once you get your geometry to the region level:
1) expand Feature Curves under Region->Region 1
2) right click on your curve. Y
3) hit "Edit Existing Edges in Current Scene", which will provide a toolbox for extracting specific curves from your feature curve.

mmn1239 March 30, 2012 01:38

Awesome - thanks again.

ryancoe April 11, 2012 14:39

Another great tool for getting clean edges is the 'contact prevention' setting. This will prevent the edge from becoming beveled.


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