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oulebsir redouane July 17, 2006 11:40

matching arbitrary meshes
 
hello,

I am trying to match a flat mesh another one wich is curved, so the verticies don'y match.

could you tell me the easiest way to achive this purpous. Or where can I find the instructions which would help me.

RW July 17, 2006 15:45

Re: matching arbitrary meshes
 
If one of the meshes is regular, the second mesh can be joined to it using an eliptical generation technique. In the eliptical generation, you specify the locations of the vertices of the curved mesh that are adjacent to the vertices of the regular mesh.

Let's say that the regular mesh is to the left of the curved mesh. Then, the right edge of the regular mesh becomes the left boundary of the curved, eliptically-generated mesh. The other boundaries enclosing the eliptic mesh must also be specified. The locations of the interior points are smoothly distributed between the boundaries by solving an eliptic equation over them, usually using a relaxation technique.

See:

"Automatic Numerical Generation of Body-Fitted Curvilinear Coordinate System for Field Containing Any Number of Arbitrary Two-Dimensional Bodies"; Joe F. Thompson, Frank C. Thames and C. Wayne Mastin; Journal of Computational Physics; Volume 15, pages 299-319; 1974

Rich

RW July 17, 2006 17:44

Re: matching arbitrary meshes
 
I just worked out the answer and tested it. Let me know if you'd like to see it.

Thanks for your help.

Rich

RW July 17, 2006 17:49

Re: matching arbitrary meshes
 
Oops, sorry. Ignore that last message.

oulebsir redouane July 18, 2006 04:04

Re: matching arbitrary meshes
 
hi,

thank you for your interest, I will try to use your method, and I will let you know the progress.

oulebsir redouane July 18, 2006 04:06

Re: matching arbitrary meshes
 
obviously i would like to see see the answer.

thank you.


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