![]() It'd be a great help if you have any suggestion on how I can keep this mesh and get rid of the extra surfaces or if there's any other way that I can achieve similar mesh or better results without having to add the extra lines. The code I am using for DNS uses a python script to translate the Gmsh output file (.msh) to a readable format by the code and it creates surfaces from the 1D elements of the boundary so I can later on assign Boundary conditions to these elements, but unfortunately it creates extra surfaces for where elements edges meet along the extra lines I've created as well which should have no physical meaning. The only physical entities created are for the boundaries of the domain (axis, outflow, inflow, wall). ![]() While I have not assigned any physical entities to these supplementary lines but in order to use the transfinite I had to add elementary surfaces to the area bounded by these lines (However I did not assign any physical entities to these surfaces). identified, 3D elliptic smoothing is used to remove grid folding and improve the mesh quality. I need to mesh my domain in a way that I can have regular mesh with elements with 1:3 aspect ratio along the axis and the LHS wall and then coarser mesh everywhere else with aim of having around 600-800 elements in total (or of course if possible even less No of elements).The only way that I have so far managed to get my desired mesh was to introduce 3 extra lines parallel along the wall and the axis using transfinite mesh to help me achieve regular mesh in these areas. These surface meshes are highlighted in dashed blue lines. ![]()
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