[ANSYS Meshing] Unable to generate mesh properly.

kchaganti7 · February 13, 2024, 19:51

Hey guys.
I am unable to generate a mesh on Ansys mechanical. I am doing an analysis of NACA 6412 airfoil by following a video I found on YouTube which was an analysis on NACA 2412.

The highlighted green part is where I am facing an issue. I did the following,
1. Split the entire flow field in 6 faces.
2. Did sizing about various edge geometry.
3. Assigned bias factors, number of divisions and reverse bias for ones which are inverted as well to bring the smaller divisions towards the airfoil.
4. Generated the mesh.

Please help.

Gert-Jan · February 14, 2024, 05:58

Are you creating the mesh for all volumes in one go?
Or do you mesh volume by volume? You can do this by:

0) Make sure you have Volume Selection turned on.
1) Select Mesh (in the tree)
2) Select a volume in the screen
3) Use your RMB and select "Generate mesh on selected Volume".

In this way you have more control over the meshing sequence. Also, you are able to find which volume works well, and which one not.

kchaganti7 · February 16, 2024, 00:01

Hey @Gert-Jan.
I got it solved. It was a biasing issue. I had to make some bias factor changes and it generated a mesh now.

Thank you very much for the help though!

daniellarrondo · July 3, 2024, 13:49

Hey @kchaganti7 , how do you generate that beautiful mesh? I saw the video you mention and im having trouble with the mesh, but all seems correct to me.

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February 14, 2024, 05:58		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,928 Rep Power: 28	Are you creating the mesh for all volumes in one go? Or do you mesh volume by volume? You can do this by: 0) Make sure you have Volume Selection turned on. 1) Select Mesh (in the tree) 2) Select a volume in the screen 3) Use your RMB and select "Generate mesh on selected Volume". In this way you have more control over the meshing sequence. Also, you are able to find which volume works well, and which one not.

February 16, 2024, 00:01		#3
kchaganti7 New Member Kireeti Chaganti Join Date: Feb 2024 Posts: 2 Rep Power: 0	Hey @Gert-Jan. I got it solved. It was a biasing issue. I had to make some bias factor changes and it generated a mesh now. Thank you very much for the help though!

July 3, 2024, 13:49		#4
daniellarrondo New Member Daniel Larrondo Join Date: Jul 2024 Location: Spain Posts: 3 Rep Power: 2	Hey @kchaganti7 , how do you generate that beautiful mesh? I saw the video you mention and im having trouble with the mesh, but all seems correct to me.