CFD Online Logo CFD Online URL
Home > Forums > Special Topics > Mesh Generation & Pre-Processing

Gmsh vs. Pointwise mesh.

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

LinkBack Thread Tools Search this Thread Display Modes
Old   June 13, 2015, 00:33
Default Gmsh vs. Pointwise mesh.
Senior Member
Join Date: Mar 2009
Posts: 225
Rep Power: 18
paka is on a distinguished road
Toying around and finding some old files, here is an interesting comparison between two meshes, one generated in Gmsh and second one generated in Pointwise.

What needs to be said, in Gmsh I did not play with seed much. For this reason, you will notice some minor refinements in Pointwise mesh. In both cases, the CAD outline was imported in STEP file.

Both results are for OpenFOAM potentialFoam solver. Vertical inflow velocity of 10 m/s from the bottom of the domain with outlet boundary at the end of the conduct. The presented results are for velocity field. Both domains show maximum corner singled cell concentrated velocity of 38 m/s.

This is quite a simple geometry, nonetheless, it shows those two meshing packages in some way do not stand out from each other. It must be noticed the Gmsh mesh cell count is 1/3.7 times smaller from the Pointwise mesh, however, this could be possibly adjusted through meshing options. FYI: Before it turned out to be a test case, the Gmsh grid was suppose to be coarser.

The plots were prepared in ParaView. If you have any other suggestions and/or other observations please contribute to the topic.

PS. Sorry the graphic resolution is not the best, but this is all the forum allowed me to do.
Attached Images
File Type: jpg Pointwise_vs_Gmsh_comparison.jpg (27.9 KB, 137 views)
paka is offline   Reply With Quote

Old   June 13, 2015, 00:53
Senior Member
Join Date: Mar 2009
Posts: 225
Rep Power: 18
paka is on a distinguished road
For the record, a comparison between the volume grid resolutions.
Attached Images
File Type: jpg Pointwise_vs_Gmsh_grid_resolution.jpg (20.4 KB, 104 views)
paka is offline   Reply With Quote


comparison, gmsh, meshing, openfoam, pointwise

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] Generating Mesh for STL Car in Windtunnel Simulation tommymoose ANSYS Meshing & Geometry 48 April 15, 2013 04:24
[Gmsh] 2D Mesh Generation Tutorial for GMSH aeroslacker OpenFOAM Meshing & Mesh Conversion 12 January 19, 2012 03:52
Mesh for a tube with a deflector - Pointwise stone123 Pointwise & Gridgen 1 November 20, 2011 14:14
[Gmsh] gmshToFoam problem: not the same mesh in Gmsh vs. paraview zhernadi OpenFOAM Meshing & Mesh Conversion 8 July 7, 2011 02:28
[Gmsh] Import problem ARC OpenFOAM Meshing & Mesh Conversion 0 February 27, 2010 10:56

All times are GMT -4. The time now is 03:26.