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Remarks Concerning Duns

If you intend to create a 2D-mesh for the cfd-code duns you have to watch that all surfaces are created in the same order. That means, that all surfaces must be defined clockwhise or counter-clockwhise. The block-structure can be detected only in this case. You can check the mesh by simply mesh it with shell-elements and display it lighted. All elements must be either dark or lighted. See also ``Command Line Options'', ``mesh'', ``send ''.