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

SnappyHexMesh nCellsBetweenLevels 3

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 8, 2008, 17:09
Default Follow up on the thread http:/
  #1
Member
 
Niklas Wikstrom
Join Date: Mar 2009
Posts: 85
Rep Power: 8
wikstrom is on a distinguished road
Follow up on the thread http://www.cfd-online.com/cgi-bin/Op...8039#POST28039

Sorry about the delayed bug report, but here it is and with test case.

Description:
snappyHexMesh bails out when increasing nCellsBetweenLevels from 2 to 3 in specific case (below)

Could not find point 129196 in the anchorPoints for cell 97678

Does your original mesh obey the 2:1 constraint and did you use consistentRefinement to make your cells to refine obey this constraint as well?#0 Foam::error::printStack(Foam::-Ostream&) in "/home/OpenFOAM/OpenFOAM-1.5.x/lib/linux64GccDPOpt/libOpenFOAM.so"


Solver/Application:
snappyHexMesh

Source file:

Testcase:

snappyBugCase.tar.bz2

Platform:
linux 32 and 64 bit (Ubuntu 8.04 and 8.10)

Version:
1.5.x

Cheers
Niklas
wikstrom is offline   Reply With Quote

Old   November 10, 2008, 09:38
Default Thanks. Pushed a change to 1.5
  #2
Super Moderator
 
Mattijs Janssens
Join Date: Mar 2009
Posts: 1,416
Rep Power: 16
mattijs is on a distinguished road
Thanks. Pushed a change to 1.5.x git to stop it failing. With more than two layers between levels it uses a geometric test which does not work very well for non-cubic cells so it still might not do what you want.
mattijs is offline   Reply With Quote

Old   November 11, 2008, 05:51
Default Adding question to this thread
  #3
Member
 
Niklas Wikstrom
Join Date: Mar 2009
Posts: 85
Rep Power: 8
wikstrom is on a distinguished road
Adding question to this thread since it's still warm, although no bug:

I have generated a snappyHexMesh mesh for a customer running OF-1.5. It was generated on 1.5.x. When running checkMesh in 1.5 there are several errors about concaveFaces and warpedFaces et c. These errors does not apear when the mesh is checked in 1.5.x.

Are ther mesh differences, or only tolerance changes between the versions?

Cheers and many thanks!
Niklas
wikstrom is offline   Reply With Quote

Old   November 13, 2008, 12:08
Default There should be little mesh di
  #4
Super Moderator
 
Mattijs Janssens
Join Date: Mar 2009
Posts: 1,416
Rep Power: 16
mattijs is on a distinguished road
There should be little mesh differences. Mesh checking hasn't changed. Rerun with binary writing and see if that helps.
mattijs is offline   Reply With Quote

Reply

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 and Snapping thomasr OpenFOAM Mesh Utilities 5 March 15, 2012 12:07
SnappyHexMesh erik023 OpenFOAM Mesh Utilities 19 October 17, 2010 10:09
SnappyHexMesh in Parallel bastil OpenFOAM Mesh Utilities 22 April 7, 2010 11:48
SnappyHexMesh mp340 OpenFOAM Meshing & Mesh Conversion 1 November 13, 2008 14:30
SnappyHexMesh vs turbDyMFoam young OpenFOAM Running, Solving & CFD 0 October 16, 2008 10:21


All times are GMT -4. The time now is 22:18.