Unpaired faces in mesh

[Tom Goode]

Hello,

I'm looking to run a 3D simulation using PyFR and I'm having some trouble importing the mesh from Gmsh. I created the 3D mesh by extruding a 2D geometry that I have run successfully before. When importing the 3D mesh with PyFR I get the following error:

ValueError: Unpaired faces in mesh

Has anybody come across this before? Everything looks OK when visually inspecting the mesh in Gmsh, and I've double checked the surface and volume labelling when defining the physical characteristics. 

Any help would be greatly appreciated.

Best,

Tom

[nnunn]

Can you send the gmsh script you used to generate the 3d mesh?

This would give us a place to start.

[Tom Goode]

Of course, I've attached the .geo file.

[nnunn]

Tom - in your Physical Surface("wall_lower"), you've got 1533 instead of 153.

The few quads in boundary piece 153 were not being "popped" from resid.

After changing this, mesh loads correctly.

Nigel

[Thomas Goode]

Thanks Nigel, thats done the trick! Sometimes a fresh pair of eyes is what’s needed.

Tom

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