How to eliminate the obtuse triangles.
I'm a newer for gmsh and using it to generate mesh for semiconductor simulation. But there are some obtuse triangles in the mesh file. But these obtuse triangles will lead to failure of convergence and induce fluctuation of physical parameters. So I need a method to avoid these obtuse triangles. There are some non-physical arrows located at the obtuse triangles. In order to get more realistic results, I have to find an approach to refine the mesh. Can anyone tell me how to avoid such obtuse triangles?