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

[ANSYS Meshing] ICEM Meshing :specified nodes along curve did not appear

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 13, 2012, 03:50
Default ICEM Meshing :specified nodes along curve did not appear
  #1
Member
 
ralph
Join Date: Jun 2010
Location: Calgary Alberta
Posts: 38
Rep Power: 7
syler3321 is on a distinguished road
Send a message via Skype™ to syler3321
Hi,
Can anybody help me with this problem?
I'm creating a mesh for a weird airfoil using surface mesh. I can't use the blocking method in ICEM because the geometry is too complex. What I did was the following:
1. Create a surface of the whole domain.
2. Segment/trim the airfoil from the surface.
3. Delete the airfoil.
4. Go global mesh and set to patch dependent, tri;
5. Curve mesh setup, clicked the curves delineating my airfoil and set the number of nodes.
6. Compute mesh.

After that i found that my leading edge only consisted of 4 to 5 mesh nodes making it look rather clunky and not smooth. I specified at least 30 nodes in that region but somehow ICEM cannot seem to do this. What am i doing wrong?edge001.jpg
syler3321 is offline   Reply With Quote

Old   June 13, 2012, 08:40
Default
  #2
Member
 
Yon Han Chong
Join Date: Jun 2012
Posts: 77
Rep Power: 5
yonchong is on a distinguished road
Try patch-independent option.
yonchong is offline   Reply With Quote

Old   June 13, 2012, 15:36
Default
  #3
Member
 
ralph
Join Date: Jun 2010
Location: Calgary Alberta
Posts: 38
Rep Power: 7
syler3321 is on a distinguished road
Send a message via Skype™ to syler3321
hi yonchong,
I cant use patch independent because i'm trying to get a periodic boundary condition. I tried it already but ended up with a mesh that has no periodic boundaries ( even though i specified it). Also a patch independent mesh leaves big meshes within the domain.
syler3321 is offline   Reply With Quote

Old   June 13, 2012, 15:45
Default
  #4
Member
 
Yon Han Chong
Join Date: Jun 2012
Posts: 77
Rep Power: 5
yonchong is on a distinguished road
Are you sure about the periodic boundary condition and patch independent? I thought it was the other way around. If you use patch dependent you will not have the periodic boundary condition because you are using the surface geometries to build a surface mesh.

The patch independent uses Octree Volume mesher and then delete the volume mesh when it finishes leaving only a surface mesh. In fact, you could do the Octree Volume meshing and then manually delete the volume mesh to have the surface mesh only. The periodic boundary condition should be there because you are building the volume mesh initially for this.

If I were you I will try again.
yonchong is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[ICEM] ICEM Hexa Meshing Automation Haasini ANSYS Meshing & Geometry 1 April 24, 2012 22:46
[ICEM] meshing issues in ICEM CFD acjoshi ANSYS Meshing & Geometry 3 April 14, 2012 12:01
[ICEM] Unstructure Meshing Around Imported Plot3D Structured Mesh ICEM kawamatt2 ANSYS Meshing & Geometry 17 December 20, 2011 12:45
Meshing a Mixing Plane in ICEM Will Anderson ANSYS Meshing & Geometry 2 November 9, 2010 10:16
[ICEM] Need help in ICEM CFD Mapped Meshing falconf16 ANSYS Meshing & Geometry 3 February 19, 2010 15:21


All times are GMT -4. The time now is 14:51.