# gambit

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 February 28, 2000, 13:05 gambit #1 shery Guest   Posts: n/a I'm trying to mesh a geometry but I'm getting this message: check the skewnesses of you fasce meshes and make sure the face mesh sizes are not too large in areas of small gaps. I checked the skewness and it's low enough. my problem is very similar to Andrew's and I tried all the suggestions that you guys gave him but it didn't work for me. thanks

 February 28, 2000, 18:06 Re: gambit #2 Sandeep Abhyankar Guest   Posts: n/a Hi there, I have had the same problem before while meshing certain geometries using tet-mesh. Although the skewness of the face meshes looked ok, during volume mesh generation, certain faces created had a high skewness, which caused this error to occur. I decomposed my volumes further and tried re meshing them and was lucky. You might want to try that. Unfortunately in gambit there is really very little control on vol mesh generation when you are using a tet-mesh.

 March 1, 2000, 14:28 Re: gambit #3 shery Guest   Posts: n/a thanks Sandeep for your response,but what do you mean by decomposing the volume ?Do you mean separate volume into several faces or decompose the volume into several volumes? thanks again

 March 1, 2000, 14:33 Re: gambit #4 Sandeep Abhyankar Guest   Posts: n/a By decomposing the volumes, I meant splitting your original big volume into smaller volumes. I guess this way you can have a better control on the tet mesh sizes in the narrow gaps and hopefully that would get rid of the skewness of the "internal" faces generated during volume mesh creation.

 March 13, 2000, 00:04 Re: gambit #5 Scott Gilmore Guest   Posts: n/a Shery, your problem is most likely that you have small gaps where the local surface mesh sizes are much larger than the gap sizes. Refining the surface meshes in those areas is likely to solve the problem.

 March 13, 2000, 11:03 Re: gambit #6 shery Guest   Posts: n/a thanks Scott and Sandeep for your suggestions,the problem that I have now is in fluent.I was able to mesh the geometry by changing some of the defaults, but now in fluent when I check the mesh it fails. do you have any idea why? thanks,shery

 March 13, 2000, 11:13 Re: gambit #7 Scott Gilmore Guest   Posts: n/a Shery, it is not possible to know what is causing the problem without seeing the mesh file. Please contact your local Fluent office. I'm sure they'll be able to help.

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