CFD Online Logo CFD Online URL
Home > Forums > ANSYS Meshing & Geometry

Boundary layer detailing

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

LinkBack Thread Tools Display Modes
Old   December 20, 2009, 10:41
Default Boundary layer detailing
Join Date: Aug 2009
Posts: 66
Rep Power: 10
Jonny6001 is on a distinguished road
Hi, I am running some simulations of tapering and straight pipes, trying to optimise for max volumetric flow.

At the moment the geometry is drawn in CATIA then imported in to Gambit as an IGES. I then sew the faces in to a volume and simply generate a volume mesh Tet/Hybrid with spacing 1, the pipe is 70mm long with diameter 40mm. This gives me slightly over 400,000 elements which I think is a little too much. I have ran all my simulations with each pipe having around this many elements and the results are pretty good.

What I would like to know is, how would I go about getting an even finer mesh in the boundary layer region and grown the element size further from the walls? I have done this in the past with 2D geo but I don't know how it works for 3D. Is there a simple 3D pave method or do I have to split the geometry up in to zones and mesh them individualy?

Thanks a lot
Jonny6001 is offline   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
Default Faces on Boundary Layer axel Open Source Meshers: Gmsh, Netgen, CGNS, ... 8 February 17, 2011 08:47
Adapt mesh without modifying boundary layer cells? Freeman FLUENT 0 February 22, 2009 15:11
3D Boundary Layer Mario FLUENT 0 February 17, 2009 04:40
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15
Adding layer to cyclic boundary Chris P Siemens 3 November 15, 2004 22:17

All times are GMT -4. The time now is 09:13.