[VladCFD]

Good morning everyone,

I've been using ICEM for quite a while
This time, I am using the ANSYS Workbench interface to parameterize a case, as I intend to iterate through several geometry configurations and different flow velocities. I thus built a geometry (SpaceClaim) - Meshing (ICEM) - Solving (Fluent) workflow, which works quite ok.

I am just experiencing an issue at the ICEM step.
When the geometry is changed, everything is updated in ICEM except, it appears, the Snap to vertices command.
Therefore, I need for every new case to open ICEM and project manually those few vertices to re-run the pre-mesh.
Let us mention that those vertices are still bound to the same points. But these points having moved, the mesh is re-generating from the former locations and not based on the new topology.
When using manually the command, everything is well again.

How can I make Workbench or ICEM apply this particular action as well as all the others ? I have many many configurations to run, I cannot open manually the mesh for every topology iteration

Thank you for your help.

Vlad

[Gweher]

Hi Vlad,

Just to be sure, in your Workbench setup do you call ICEM in a stand-alone cell (linked to the Spaceclaim geometry) or inside a single meshing setup ?

[VladCFD]

Hi,
ICEM is called as the meshing workshop, linked upstream to the geometry workshop (SpaceClaim) and downstream to the solver (Fluent).
Thanks

[Gweher]

Ok great, I suppose that you are also using a recorded journal script for ICEM for the blocking generation?

If that is the case and the points are not changing, sometimes in batch you have to use it in conjunction with the "update association" and select the relevant options (vertex, edges, faces, blocking for instance).

I think this should do the trick.

have fun

[VladCFD]

Actually I'm not using any ICEM journal, I rely on the workbench system to automatize and update the respective workshops; and it works pretty well except on this point. The whole point is to avoid ICEM scripts, which I was told are not so easy to manipulate

[Gweher]

Ok well in that case there are still 2 options I can think of. One involves a bit of scripting with a workbench journal file the other may be more "user friendly" if you want to avoid scripting for some reason.

I would then suggest to regroup the geometry and meshing under 1 under one setup cell (mesh setup = geometry + mesh). Change the physics to CFD. The trick is to add a meshing method > multizone > call ICEM from Mechanical. In this way the mesh should automatically update. Bonus point, if you want to setup a particular meshing topology with a blocking you can simply run the first session as "interactive" and once you're satisfied with the mesh save the project and close ICEM. Then change the option "interactive" inside Mechanical to "batch" which will take care of the rest.

Have fun

[VladCFD]

I had not thought of grouping both workshops indeed ; I'll definitely try this.
Thanks a lot

[Gweher]

Great keep us posted