[zeng1017]

Originally Posted by Antanas

Wrong. It's still there.

Hi Antanas,
Nice to receive your reply again. I thought you were referring to the "mapped face meshing", which has an option "radial number of deviations"(please see the picture). This option gives smoother transition around corners(please see the picture), which is similar to the mesh I am trying to do (picture 1).

If you have any idea about how to make this kind of mesh in v171, please let me know. Any help appreciated.

[zeng1017]

Originally Posted by siw

The only way to get the mesh shown in Picture 1 using ANSYS Meshing is to decompose the geometry into 4-sided (if this is 2D) blocks. Unlike ICEM in which you can make the blocking topology at the mesh level, ANSYS Meshing requires this to be done at the geometry level, so for instance smoothing of the mesh across geometry blocks is not possible.

Use DesignModeler or similar to slice your domain into blocks and then you can use edge sizings (with bias if you like).

I have attached a quick test of what I think you want using DesignModeler and Meshing inside Workbench using v17.2. Unzip and then un-archive in Workbench. I have used a MultiBody Part and notice there is no smoothing.

Hi Stuart,
Thanks a lot for your help. I am trying to run the following 3 mesh. The supercomputer is super busy today.

Besides, I still wondering how to generate the mesh similar to "mapped face meshing". This method has an option "radial number of deviations"(please see the picture: https://www.cfd-online.com/Forums/at...e-picture9.jpg). This option gives smoother transition around corners(please see the picture: https://www.cfd-online.com/Forums/at...-picture10.jpg), which is similar to the mesh I am trying to do (picture 1: https://www.cfd-online.com/Forums/at...-picture-1.png).

If you have any idea, please let me know. Any help appreciated.

[siw]

Your three pictures show good meshes of different element layouts, are they still giving solution issues?

[zeng1017]

Originally Posted by siw

Your three pictures show good meshes of different element layouts, are they still giving solution issues?

Hi Stuart,
I just checked my 3 Fluent jobs running on a supercomputer. only the following meshing gave converged iteration.
(https://www.cfd-online.com/Forums/at...-picture11.jpg)

Another two got diverged. For the divergence of this one,
(https://www.cfd-online.com/Forums/at...-picture12.jpg)
I think it is because the abrupt mesh transition happened on the corners.

For the divergence of another one,
(https://www.cfd-online.com/Forums/at...-picture13.jpg)
I have no idea why it happened. I am trying other p-v coupling methods to see if that will give a better result.

[yanki]

such an informative thread. thanks for all the answers.