Create new *blockMeshDict*

[AndreWeiner]

Hi Fabian,
as a warm-up, I would like to create an alternative mesh for the cylinder flow setup. The current setup uses a combination of the native OpenFOAM meshers blockMesh and snappyHexMesh. To simplify and accelerate the mesh creation, I would like to create the mesh entirely in blockMesh. I suggest the following steps

• get familiar with the current simulation setup
• check out the OpenFOAM user guide of blockMesh
• this tutorial from the tutorial guide might be helpful
• modify this existing blockMeshDict and remove snappyHexMeshDict and extrudeMeshDict

If questions come up, you can post them in this issue.

Best, Andre

[FabianGabriel]

Hi Andre,
I just did this task with the commit: 2aea2b4
Let me know if I can improve on certain aspects on this mesh.

Best, Fabian

[AndreWeiner]

Hi Fabian,

the mesh looks pretty good. There is one point for improvement. Unfortunately, I pointed you to a tutorial that uses the old #calc syntax. The old preprocessing requires runtime compilation each time the mesh is created, as you probably noticed. The new #eval works much quicker. Here are some links that will help you to replace the old preprocessing with the new one:

• example blockMeshDict
• overview of data types and functions in the official documentation

Best, Andre

[FabianGabriel]

Hi Andre,

I have now replaced every #calc with #eval statements in commit 1d8e52d

Best, Fabian