I am trying to use a background mesh for refinement of my 2d structure. The 2 bad triangles have a gamma of zero.
in this figure: [image: image.png] They are formed by nodes: element: 44333 nodes: 425 426 424 element: 44334 nodes: 426 427 424 which results in two overlapping flat triangles. Would someone know how to fix these bad elements? My solver is unable to work with this mesh because it cannot calculate the control volume for these triangles. I am using the latest Gmsh on macOS: 4.4.1 The command used is: gmsh -2 -format 'msh2' -bgm ./bgmesh.pos gmsh_mos2d.geo The files are here: https://github.com/devsim/devsim_misc/blob/master/refinement/gmsh_mos2d.geo https://github.com/devsim/devsim_misc/blob/master/refinement/bgmesh.pos and the output is here: https://github.com/devsim/devsim_misc/blob/master/refinement/gmsh_mos2d.msh Regards, Juan
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