CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Meshing & Mesh Conversion

[snappyHexMesh] Checkinf if SHM stl files are watertight

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 19, 2017, 19:06
Default Checkinf if SHM stl files are watertight
  #1
New Member
 
Franco
Join Date: Sep 2015
Location: Montreal
Posts: 24
Rep Power: 6
fracasce is on a distinguished road
Hi foamers,

I'm having hard times with SHM. I'm trying to make a 2D mesh, as shown in the wingMotion tutorial. Therefore, I'm implementing a mesh with SHM from stl files exported by Salome.

The problem is that snappyhexmesh does not remove the mesh made by blockMesh. I think that the problem is that the stl files do not make a watertight mesh. However, how can I be sure about that it? I've seen that the utility surfaceCheck can be used to do this check, but it expects only one argument (i.e., one surface). So, the question is: how it is possible to check if all my stl files (which represent surfaces) make a watertight solid?

Thanks by now

Franco

ps: in the attached file, you can find my case
Attached Files
File Type: zip 2D_Analysis.zip (98.9 KB, 2 views)

Last edited by fracasce; April 19, 2017 at 19:12. Reason: changing email notifications
fracasce is offline   Reply With Quote

Old   April 20, 2017, 12:38
Default
  #2
New Member
 
Franco
Join Date: Sep 2015
Location: Montreal
Posts: 24
Rep Power: 6
fracasce is on a distinguished road
I realized what was the error in SHM: in order to avoid the problem mentioned above, it is necessary to define the level of refinement for all the surfaces (and not just some of them, as I did).

Hope this answer can help!!

Franco
fracasce is offline   Reply With Quote

Old   April 25, 2017, 06:50
Default
  #3
Senior Member
 
KaLium's Avatar
 
Kal-El
Join Date: Apr 2017
Location: Finland
Posts: 150
Rep Power: 5
KaLium is on a distinguished road
Quote:
Originally Posted by fracasce View Post
I realized what was the error in SHM: in order to avoid the problem mentioned above, it is necessary to define the level of refinement for all the surfaces (and not just some of them, as I did).

Hope this answer can help!!

Franco
Yes. All surfaces must be defined in refimentSurfaces.
KaLium is offline   Reply With Quote

Reply

Tags
snapphhexmesh, stl file, watertight

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
[snappyHexMesh] With FreeCAD: creating waterproof STL files? robob OpenFOAM Meshing & Mesh Conversion 11 April 29, 2018 11:33
[CAD formats] Degenerate triangles in STL for use in sHM Dreoasteh OpenFOAM Meshing & Mesh Conversion 1 September 27, 2017 10:17
[snappyHexMesh] Convert stl files and multi region abrunet OpenFOAM Meshing & Mesh Conversion 1 July 1, 2014 10:15
Results saving in CFD hawk Main CFD Forum 16 July 21, 2005 20:51
Getting STL files to fluent Philip FLUENT 7 May 27, 2005 08:56


All times are GMT -4. The time now is 04:39.