I’m building a wind turbine and as you might imagine, the blades are Ye Royale Paine In Me Buttocks. Too big for a CNC, too exposed for a 3D print, too complicated to be made by hand. I decided to make blades from pipes. This simplifies the build but now how do I know how […]
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
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.
Merging Files If you’re using SALOME to create STL files for meshing you can only save separate surfaces to separate files. That’s not a problem if you’re using snappyHexMesh but cfMesh only takes an STL file that has all surfaces combined and named. I wrote a simple Python script that does that for you. Save
