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Old   July 17, 2006, 11:40
Default matching arbitrary meshes
  #1
oulebsir redouane
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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.
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Old   July 17, 2006, 15:45
Default Re: matching arbitrary meshes
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RW
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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
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Old   July 17, 2006, 17:44
Default Re: matching arbitrary meshes
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RW
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I just worked out the answer and tested it. Let me know if you'd like to see it.

Thanks for your help.

Rich
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Old   July 17, 2006, 17:49
Default Re: matching arbitrary meshes
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RW
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Oops, sorry. Ignore that last message.
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Old   July 18, 2006, 04:04
Default Re: matching arbitrary meshes
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oulebsir redouane
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hi,

thank you for your interest, I will try to use your method, and I will let you know the progress.
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Old   July 18, 2006, 04:06
Default Re: matching arbitrary meshes
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oulebsir redouane
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obviously i would like to see see the answer.

thank you.
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