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ANSYS 2020 R2 - Airfoil meshing trailing edge problem

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Old   October 20, 2020, 10:21
Question ANSYS 2020 R2 - Airfoil meshing trailing edge problem
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Henk jan
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Hi everyone,


I am encountering a problem when creating a structured mesh for the FX 74-CL5-140 MOD airfoil.

When loading the airfoil as 3D curve it is completely closed and looks like this:
(https://imgur.com/a/UEPoPO0)


However, when meshing it seems ANSYS cuts of the trailing edge not the way I would want it too:


(https://imgur.com/a/lMvZy6e)


I would like it to generate a mesh similarly to this:
(https://imgur.com/a/zhJEEHg)

Does anyone know how I can fix this problem? Thanks in advance.
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Old   October 22, 2020, 07:56
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Aideal Zohary
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Hi,

One trick is to modify the trailing edge of the original profile. If youre using solidworks, you can just choose a location at the t.e say 0.99x/c and trim it off. Next draw a vertical line near the trailing edge. The reason for this is to use the "extend entities" sketch tool. Extend both the top and lower part till they become a sharp te.
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airfoil meshing, ansys, trailing edge

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