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Old   March 2, 2005, 09:22
Default Multblock Grid Generation
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hallo Have anyone experiences with elliptic multiblock grid generation? I am looking for some appropriate scheme of multiblock topology file and some help how to handle special block vertices (common to more or less then 4 blocks).


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Old   March 2, 2005, 09:52
Default Re: Multblock Grid Generation
Hrvoje Jasak
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Yup - make a vertex mapping into global vertex numbers for each block, where the merged vertex keeps a lower index. Keep looping through blocks in a big do-loop and do matching over block pairs but keep track whether addressing has changed. When it stops changing, escape from the do-loop.

Clean and easy and it will be OK no matter how many blocks share a point. On the bnegative side, you'll visit the mapping over all blocks once more than necessary, but the cost is low enough to be ignored.


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