CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM Post-Processing

how to visualize using paraView

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

LinkBack Thread Tools Display Modes
Old   March 2, 2016, 21:27
Default how to visualize using paraView
Join Date: Jul 2015
Posts: 33
Rep Power: 4
KeiJun is on a distinguished road
Dear Sir,

I have tried mesh-generation using snappyHexMesh for the first time, and checked the generated mesh by visualizing it using paraView.

Then, it is different visualization whether or not "Use VTKPolyhedron" is on.

I understand "Use VTKPolyhedron" enables us to visualize polyhedron (i.e. don't visualize polyhedron as tetrahedra), but some cells disappear when "Use VTKPolyhedron" is on. (See the attatched pictures)

Why does this happen?
Does it mean some cells really disapper?
Or, is something wrong with paraView, and do cells acutually exist?

"checkMesh" is OK, I confirmed.

I'm looking forward to your reply.


Attached Images
File Type: jpg VTKPolyhedron_off.jpg (65.9 KB, 18 views)
File Type: jpg VTKPolyhedron_on.jpg (57.7 KB, 20 views)
KeiJun is offline   Reply With Quote

Old   March 12, 2016, 15:36
Senior Member
Artur's Avatar
Join Date: May 2013
Location: Southampton, UK
Posts: 299
Rep Power: 12
Artur will become famous soon enough
THe mesh stays the same, the only thing that changes is the way Paraview renders it. I admit, it's pretty bad if your cells are not the standard shapes, as often happens with snappyHexMesh. I'd recommend looking at patches (these always render properly) and using cuts a lot, those suffer from the same problem but let you convince yourself your mesh is ok (or not).

ALl the best,

Artur 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
use paraview to visualize the openfoam output results hz283 OpenFOAM 2 July 23, 2013 08:18
Visualize pointSet in ParaView Arnoldinho OpenFOAM Paraview & paraFoam 2 July 12, 2012 04:58
Visualize checkMesh output with Paraview Horus OpenFOAM 1 May 29, 2012 11:51
Visualize Star-CCM+ data in Paraview peresah STAR-CCM+ 0 January 14, 2010 11:52
paraFoam reader for OpenFOAM 1.6 smart OpenFOAM Installation 13 November 16, 2009 22:41

All times are GMT -4. The time now is 09:51.