blockMesh for External Flows

The Old-Fashioned blockMesh BlockMesh is the weapon of choice for directly generating rather simple meshes of channels, pipes, 2D-stuff etc. Those are mostly internal flows. With external flows, life gets tough much quicker. Consider a very simple case of a 3D flow past a cube. You now need this many blocks: But the cube itself

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Classy Classes for blockMesh

IMPORTANT! classy_blocks have been massively improved but this article hasn’t. Please refer to readme in repository for most up-to-date information and examples. blockMesh: pros and cons blockMesh is a great tool for creating simple and quick meshes. It also creates structured meshes and offers total control over its cells, which snappyHexMesh (and many other) doesn’t.

classy_blocks, ,