CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Mesh Utilities

internal mesh with snappyHexMesh

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 11, 2009, 03:42
Default internal mesh with snappyHexMesh
  #1
Senior Member
 
romant's Avatar
 
Roman Thiele
Join Date: Aug 2009
Location: Stockholm, Sweden
Posts: 359
Rep Power: 12
romant is on a distinguished road
Hej,

I was wondering if it is possible to mesh the inside of a body with snappyHexMesh. The problem is fairly simple. I have a cup of a complex shape (meshing the surface with snappyHex is no problem) and a body of water inside (also of this complex shape). I try to mesh the body of water from the inside, it removes the bounding box around the body of water, which I think is a first success, but when I load the body of water into paraView with paraFoam I can't see that there are cells inside the body. snappyHexMesh seems to only model the wall of the body. How can I make it create a mesh not only on the wall, but also in the center.

Could it be that paraView just does not show the inside mesh of the body?
romant is offline   Reply With Quote

Old   August 11, 2009, 04:24
Default
  #2
Super Moderator
 
Mattijs Janssens
Join Date: Mar 2009
Posts: 1,416
Rep Power: 16
mattijs is on a distinguished road
snappyHexMesh refines an existing mesh and uses a walk (cell to face to cell etc) from the locationInMesh to find out which cells are connected. Anything else gets removed. Sometimes if your surfaces are not closed the mesh will spill out.
mattijs is offline   Reply With Quote

Old   August 11, 2009, 05:12
Default
  #3
Senior Member
 
romant's Avatar
 
Roman Thiele
Join Date: Aug 2009
Location: Stockholm, Sweden
Posts: 359
Rep Power: 12
romant is on a distinguished road
Thank you...

The problem were not any open geometries. I already found now that paraView only shows the surface mesh and upon zooming still only shows the surface mesh. When creating a slice of the geometry, the internal cells show. So my mesh was right all along, but I could not see it.
romant is offline   Reply With Quote

Reply

Tags
internal mesh, mesh, snappyhexmesh

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
SnappyHexMesh hangs wile mesh refinement bastil OpenFOAM Bugs 3 November 4, 2008 07:08
Inside and outside mesh with snappyhexmesh nzy102 OpenFOAM Mesh Utilities 0 August 31, 2008 23:50
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 12:55
ICEM 10 mesh question DAK565656 CFX 6 May 8, 2007 12:16
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 18:10


All times are GMT -4. The time now is 09:35.