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Obstructed flow-Unstructured mesh

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Old   September 11, 2008, 12:29
Default Obstructed flow-Unstructured mesh
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I am working on obstructed flow in a tunnel. I am using Volume Split command to create obstruction in the tunnel and I could only generate Tetrahedral mesh of TGRID type (unstructured mesh)which is giving a lot number of mesh elements.

How could I generate a structured mesh for an obstructed flow? Is there any method other than Splitting the volume to create the obstruction?

Please help.

Thank you.
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