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Symmetrical geometry and parameter settings generate asymmetrical mesh in Gmsh.

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Old   September 3, 2021, 01:18
Default Symmetrical geometry and parameter settings generate asymmetrical mesh in Gmsh.
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shenjian
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I had a 2d symmetrical airfoil and set symmetrical parameters on the upper and lower surface. Then, I generated the 2D mesh in Gmsh, but I found the upper and lower mesh were not symmetrical, but I couldn't find the problem. I appreciate your help.



I post .geo file to the attached file.
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