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

[ICEM] moving vertices over a surface

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 26, 2013, 10:10
Default moving vertices over a surface
  #1
Senior Member
 
Join Date: Nov 2011
Posts: 109
Rep Power: 14
robboflea is on a distinguished road
Hi all,

I am meshing a 3d turbine blade. I had a previously working 2d blocking for a similar case so my idea was to import the 2d blocking, associate it to the hub and play with it to ged a reasonebly good 2d mesh on the hub wall and then extrude the block, associate what left and do fine adjustments in 3d.

The problem is that once I associated the faces of the 2d blocks to the surface and the vertices to the surface they do not automatically snap on the surface.

When I move them they are floatin around in the full 3d space, unconstrained. they are then projected on the surface only if I manually click on "snap project vertices". Is that normal? Shouldn't they be bounded to lay and move only on the surface when associated (like vertices associated to cirves)?

Any help is really much appreciated.

Thanks

Rob
robboflea is offline   Reply With Quote

Old   July 26, 2013, 10:32
Default Movement Constraints?
  #2
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
Blog Entries: 1
Rep Power: 47
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Yes, they should. Surface projected verts should move on the surfaces, curve projected ones should slide along curves.

If I had to guess, I would say that you have accidentally turned on your "movement constraints" in the Move Vertex DEZ... Turn those all off to return to the regular vertex association based movement.
__________________
-----------------------------------------
Please help guide development at ANSYS by filling in these surveys

Public ANSYS ICEM CFD Users Survey

This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)...

CFD Online Users Survey
PSYMN is offline   Reply With Quote

Old   July 26, 2013, 10:33
Default
  #3
Senior Member
 
Join Date: Nov 2011
Posts: 109
Rep Power: 14
robboflea is on a distinguished road
unfortunately none of them is selected. Any other ideas on what could be happening?

Quote:
Originally Posted by PSYMN View Post
Yes, they should. Surface projected verts should move on the surfaces, curve projected ones should slide along curves.

If I had to guess, I would say that you have accidentally turned on your "movement constraints" in the Move Vertex DEZ... Turn those all off to return to the regular vertex association based movement.
robboflea is offline   Reply With Quote

Old   July 26, 2013, 10:39
Default
  #4
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
Blog Entries: 1
Rep Power: 47
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Display the vertices with the "proj type" option on. Do you see little "s" or "c" letters next to the verts? These indicate the projection type and should be respected by the move...

How about is your surface turned on in the parts branch of the tree? They surfaces can be turned off, but the part need to be on. Move only associates with active parts. This can be handy when you want it to ignore surfaces in one part and move to another...

Not sure what else it could be, but at least you have a work around.
__________________
-----------------------------------------
Please help guide development at ANSYS by filling in these surveys

Public ANSYS ICEM CFD Users Survey

This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)...

CFD Online Users Survey
PSYMN is offline   Reply With Quote

Old   July 26, 2013, 12:07
Default
  #5
Senior Member
 
Join Date: Nov 2011
Posts: 109
Rep Power: 14
robboflea is on a distinguished road
Vertices are correctly associated, they all have "s" (and "c" the ones associeted to bounding curves) and both the part and surface are on when moving them around but the problem still persists.

Rob

Quote:
Originally Posted by PSYMN View Post
Display the vertices with the "proj type" option on. Do you see little "s" or "c" letters next to the verts? These indicate the projection type and should be respected by the move...

How about is your surface turned on in the parts branch of the tree? They surfaces can be turned off, but the part need to be on. Move only associates with active parts. This can be handy when you want it to ignore surfaces in one part and move to another...

Not sure what else it could be, but at least you have a work around.
robboflea is offline   Reply With Quote

Old   July 26, 2013, 12:09
Default
  #6
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
Blog Entries: 1
Rep Power: 47
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Sorry, I can't think of any other good reasons for this sort of behavior.

Could you send in your case to TechSupp@ANSYS.com?
__________________
-----------------------------------------
Please help guide development at ANSYS by filling in these surveys

Public ANSYS ICEM CFD Users Survey

This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)...

CFD Online Users Survey
PSYMN is offline   Reply With Quote

Old   July 26, 2013, 12:30
Default
  #7
Senior Member
 
Join Date: Nov 2011
Posts: 109
Rep Power: 14
robboflea is on a distinguished road
done. Do let me know if you find something wrong

Quote:
Originally Posted by PSYMN View Post
Sorry, I can't think of any other good reasons for this sort of behavior.

Could you send in your case to TechSupp@ANSYS.com?
robboflea is offline   Reply With Quote

Reply

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
[ICEM] surface mesh merging problem everest ANSYS Meshing & Geometry 44 April 14, 2016 07:41
[ICEM] How to generate sunstructured "all-tri patch-dependant" surface mesh in ICEM? jash ANSYS Meshing & Geometry 19 July 23, 2013 19:48
moving mesh interface meets with water-air free surface lucien shi Fluent Multiphase 1 July 5, 2013 14:10
Comsol (4.3): convert parametric surface into block? sgalaz COMSOL 0 November 9, 2012 10:20
[snappyHexMesh] Layers don't fully surround surface EVBUCF OpenFOAM Meshing & Mesh Conversion 14 August 20, 2012 05:31


All times are GMT -4. The time now is 08:29.