ANSYS 2020 R2 - Airfoil meshing trailing edge problem

Addkkqw · October 20, 2020, 09:21

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.

AidealZohary · October 22, 2020, 06:56

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.

October 20, 2020, 09:21	ANSYS 2020 R2 - Airfoil meshing trailing edge problem	#1
Addkkqw New Member Henk jan Join Date: Oct 2020 Posts: 1 Rep Power: 0	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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October 22, 2020, 06:56		#2
AidealZohary New Member Aideal Zohary Join Date: Feb 2019 Location: Malaysia Posts: 28 Rep Power: 7	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.