CFD Online Logo CFD Online URL
Home > Forums > CFX

need help on Prism Mesh Generation

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

LinkBack Thread Tools Display Modes
Old   December 6, 2004, 03:11
Default need help on Prism Mesh Generation
Posts: n/a

I have a problem while generating the prism layer around a tube with varying cross section (from round to rectangular). I put the natural size of 1 to catch up the sharp corner at the rectangular section.

I keep getting the pyramid elements (ie. the prism layer walk away and doesn't generate properly at the corner) at the corner of the rectangular end. Try to vary the parameter but still get the pyramid elements.

Can anyone please advise me on how to get rid of this problem? The quality of tet & tri elements are above 0.4. I can't really understand why it still not able to give a good prism mesh anyway.

Anyone know what does this message mean:

cannot insert this vertex (126860) into the volume dimension (2)

Thank you very much. Pete.

Part of the message from ICEM5:

extruding prism layer 5 first_t 16% first_t 33% first_t 50% first_t 66% first_t 83% first_t 100% 0 flat tetrahedra created between layers 0 pointy tetrahedra created between layers worst prism quality: 0.463019 worst pyramid quality: 0.631896 meshed layer 5 refining tetra-prism boundary cannot insert this vertex (126860) into the volume dimension (2) performing cleanup smoothing initializing element ratios beginning iteration worst TETRA_4 1.00688e-05 worst PYRA_5 0.0202051 smoothing 4455 TETRA_4's (up to 0.00444338) 30 PYRA_5's (up to 0.186641) 9201 vertices selected
  Reply With Quote


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
Getting prism to inflate into mixed tet-hex meshes Joe CFX 16 October 10, 2011 07:06
ICEM Prism mesh creation NGH ANSYS Meshing & Geometry 1 June 14, 2011 06:42
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 12:55
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 18:10
General questions on grid-based computing Adrin Gharakhani Main CFD Forum 21 June 5, 2000 13:47

All times are GMT -4. The time now is 16:08.