[Technical] Creating 2D cartesian cut cell meshes

hertzsprung · May 15, 2014, 06:22

I've just started using OpenFOAM to investigate atmospheric flow over terrain. I'm looking for suggestions on creating a cut cell mesh to model the terrain as a patch.

I already have code that adapts a regular grid produced by blockMesh to add a mountain using terrain following coordinates. I'm hoping to reuse the ground patch from this mesh in creating the cut cell mesh. Could snappyHexMesh be coaxed into producing such a mesh, or should I look at writing my own application?

hertzsprung · May 20, 2014, 17:03

This is as far as I've got with snappyHexMesh: http://goo.gl/GWUnSJ

I've created an .obj of the ground patch with writeMeshObj and used this as the surface with refinement level (0 0). Any suggestions are most welcome!

May 15, 2014, 06:22	Creating 2D cartesian cut cell meshes	#1
hertzsprung New Member James Shaw Join Date: May 2014 Posts: 8 Rep Power: 11	I've just started using OpenFOAM to investigate atmospheric flow over terrain. I'm looking for suggestions on creating a cut cell mesh to model the terrain as a patch. I already have code that adapts a regular grid produced by blockMesh to add a mountain using terrain following coordinates. I'm hoping to reuse the ground patch from this mesh in creating the cut cell mesh. Could snappyHexMesh be coaxed into producing such a mesh, or should I look at writing my own application?

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May 20, 2014, 17:03		#2
hertzsprung New Member James Shaw Join Date: May 2014 Posts: 8 Rep Power: 11	This is as far as I've got with snappyHexMesh: http://goo.gl/GWUnSJ I've created an .obj of the ground patch with writeMeshObj and used this as the surface with refinement level (0 0). Any suggestions are most welcome!