CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Meshing & Mesh Conversion > OpenFOAM Native Meshers: snappyHexMesh and Others

SHM problem

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

LinkBack Thread Tools Display Modes
Old   July 23, 2013, 07:08
Default SHM problem
New Member
Join Date: Jul 2013
Posts: 7
Rep Power: 6
samy902 is on a distinguished road
Hello everyone.

I am running a simulation with a two-building model. As you can see in the photo the mesh behind the frontal building is strange. I am quite a new OpenFOAM user and i can't seem to find the solution. You will find attached the SHMDict. Thank you in advance.

Note that i extracted the model from Google Sketch Up.
Attached Files
File Type: pdf Meshing.pdf (43.8 KB, 15 views)
File Type: txt snappyHexMeshDict.txt (10.5 KB, 3 views)
samy902 is offline   Reply With Quote

Old   July 24, 2013, 03:23
Senior Member
Join Date: Aug 2010
Location: Groningen, The Netherlands
Posts: 216
Rep Power: 12
colinB is on a distinguished road
Dear samy902,

I can't see anything strange in your mesh.
Maybe it helps if you describe what you expect to see.

However please be aware that paraview has troubles to display
hexaedra cells so you have those strange lines across the cells.

there is a work around for that as far as I remember, but I don't recall
it in particular, so I advise you to use the forum search and have a look
for it (try keywords: hexaedra display paraview)

I hope I could help you a little bit

colinB is offline   Reply With Quote

Old   July 24, 2013, 08:09
New Member
Join Date: May 2013
Posts: 6
Rep Power: 6
aCFDuser is on a distinguished road
Hi samy902,

if you check the "Use VTKPolyhedron" option (left panel), you remove the extra lines that Paraview generates when you cut a mesh.

Another way to visualize your mesh is for example by:
1.- clicking on "select cell through" button (upper menu)
2.- going to filters --> extract selection

aCFDuser is offline   Reply With Quote

Old   July 24, 2013, 16:51
New Member
Join Date: Jul 2013
Posts: 7
Rep Power: 6
samy902 is on a distinguished road
Thank you both for your valuable advices.

With regards
samy902 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
UDF compiling problem Wouter Fluent UDF and Scheme Programming 6 June 6, 2012 04:43
SHM add layers problem doubtsincfd OpenFOAM 0 June 6, 2011 12:01
natural convection problem for a CHT problem Se-Hee CFX 2 June 10, 2007 06:29
Adiabatic and Rotating wall (Convection problem) ParodDav CFX 5 April 29, 2007 19:13
Is this problem well posed? Thomas P. Abraham Main CFD Forum 5 September 8, 1999 14:52

All times are GMT -4. The time now is 04:52.