extrudeMesh - stop edge and cell removal
I'm having problems with sweeping a 2D mesh.
I need to change to the threshold for the lengths below which the edges and cells are removed automatically by the collageEdges part of the extrudeMesh utility.
I have altered the mergeDim value in extrudeMesh.C to a very small number (1E-20 * d) but this didn't make any difference and I'm not really comfortable with changing any more code that I don't understand.
Can anybody direct me as to where I can alter this threshold value?
I've attached screenshots of the problems it causes. The first is the 2D mesh I would like to sweep. The second is a clip plane showing the problems that deletion of small volumes causes with the geometry.
A little more info:
When I run extrudeMesh I get the following type of message:
Converting the mesh to metres from mm was a good start. However, I'm still having problems with the small volumes in the boundary layer, close to the axis of rotation.
I've solved the problem and have learned a tiny bit about programming while I've been at it.
For anyone who needs to deal with this in future:
1. Change mergeDim value in the file /OpenFOAM-X.Y.Z/applications/utilities/mesh/generation/extrude/extrudeMesh/extrudeMesh.C to some appropriate value. Don't make it too small if you still want to remove the singularities created at the axis of symmetry.
2. Delete the file applications/utilities/mesh/generation/extrude/extrudeMesh/Make/<PLATFOM>/extrudeMesh.o
3. Open a terminal in the applications/utilities/mesh/generation/extrude/extrudeMesh/ directory and run wmake.
Boom, threshold changed.
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