CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > ANSYS Meshing & Geometry

[Workbench] ICEM failing to update mesh in a Workbench flow project

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 5, 2020, 09:21
Arrow ICEM failing to update mesh in a Workbench flow project
  #1
New Member
 
Join Date: May 2020
Posts: 9
Rep Power: 2
VladCFD is on a distinguished road
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
Attached Images
File Type: jpg snap2.jpg (21.8 KB, 18 views)
VladCFD is offline   Reply With Quote

Old   July 1, 2020, 04:00
Default
  #2
Senior Member
 
Gweher's Avatar
 
Gwenael H.
Join Date: Mar 2011
Location: Switzerland
Posts: 392
Rep Power: 16
Gweher will become famous soon enough
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 ?
Gweher is offline   Reply With Quote

Old   July 1, 2020, 05:21
Default
  #3
New Member
 
Join Date: May 2020
Posts: 9
Rep Power: 2
VladCFD is on a distinguished road
Hi,
ICEM is called as the meshing workshop, linked upstream to the geometry workshop (SpaceClaim) and downstream to the solver (Fluent).
Thanks
VladCFD is offline   Reply With Quote

Old   July 1, 2020, 05:33
Default
  #4
Senior Member
 
Gweher's Avatar
 
Gwenael H.
Join Date: Mar 2011
Location: Switzerland
Posts: 392
Rep Power: 16
Gweher will become famous soon enough
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
Gweher is offline   Reply With Quote

Old   July 1, 2020, 05:48
Default
  #5
New Member
 
Join Date: May 2020
Posts: 9
Rep Power: 2
VladCFD is on a distinguished road
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
VladCFD is offline   Reply With Quote

Old   July 1, 2020, 06:26
Default
  #6
Senior Member
 
Gweher's Avatar
 
Gwenael H.
Join Date: Mar 2011
Location: Switzerland
Posts: 392
Rep Power: 16
Gweher will become famous soon enough
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
Gweher is offline   Reply With Quote

Old   July 1, 2020, 07:49
Default
  #7
New Member
 
Join Date: May 2020
Posts: 9
Rep Power: 2
VladCFD is on a distinguished road
I had not thought of grouping both workshops indeed ; I'll definitely try this.
Thanks a lot
VladCFD is offline   Reply With Quote

Old   July 2, 2020, 02:53
Thumbs up
  #8
Senior Member
 
Gweher's Avatar
 
Gwenael H.
Join Date: Mar 2011
Location: Switzerland
Posts: 392
Rep Power: 16
Gweher will become famous soon enough
Great keep us posted
Gweher is offline   Reply With Quote

Reply

Tags
automating, icem, snap, workbench, workflow

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Exit Corrected Mass Flow Rate Mesh Sensitivity Study s__s__s CFX 4 July 20, 2016 11:46
Inner geometry gets lost exporting mesh from ICEM CFD to CFX-Pre powpow CFX 3 December 20, 2012 09:14
Using Workbench, CFX-Pre doesn't update mesh from upstream data Shawn_A CFX 2 November 25, 2012 13:06
[ICEM] Generating mesh for modified parts in ICEM without changing mesh of other parts a.habibi ANSYS Meshing & Geometry 5 October 4, 2012 05:10
fluid flow fundas ram Main CFD Forum 5 June 17, 2000 21:31


All times are GMT -4. The time now is 03:06.