CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Bugs

blockMesh incorrectly attempts matching wrong cyclic faces (2 out of 3 works)

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

LinkBack Thread Tools Search this Thread Display Modes
Old   October 25, 2010, 20:03
Default blockMesh incorrectly attempts matching wrong cyclic faces (2 out of 3 works)
Senior Member
Join Date: Mar 2009
Location: Norway
Posts: 105
Rep Power: 14
kjetil is on a distinguished road
I have created a neat cyclic+wedge mesh, but blockMesh refuses to "pair" one of the cyclic patches. I have checked vertices and blocks over and over again, and I don't think these are the problem anymore - unless there are some untold restrictions regarding the blocks arrangement.

Error message follows:

face 12 area does not match neighbour 64 by 8.7206% -- possible face ordering problem.
patch:inlet my area:1.5771e-05 neighbour area:1.44531e-05 matching tolerance:0.001
Mesh face:2418 vertices:4((0.00758169 0.0061177 0.1056) (0.00887663 0.00606116 0.1056) (0.00887663 -0.00606116 0.1056) (0.00758169 -0.0061177 0.1056))
Neighbour face:2470 vertices:4((0.0205312 0.00555231 0.1364) (0.0192362 0.00560885 0.1364) (0.0192362 -0.00560885 0.1364) (0.0205312 -0.00555231 0.1364))
Rerun with cyclic debug flag set for more information.

From function cyclicPolyPatch::calcTransforms()
in file meshes/polyMesh/polyPatches/constraint/cyclic/cyclicPolyPatch.C at line 179.

FOAM exiting

Now, the blockMeshDict file is attached, and the vertices making up the two patches are 13 to 16, and 26 to 29. They points in space are all perfectly specified, where only the z value differs between the patches. So is also the block definition.

The successfull en patches can be seen in red. The blue one inbetween is the one affected and which so far is unable to be added as a part of the cyclic patch.
Attached Images
File Type: png help.png (11.4 KB, 12 views)
Attached Files
File Type: txt blockMeshDict.txt (3.7 KB, 14 views)
kjetil is offline   Reply With Quote


blockmesh, cyclic, error, wedge

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
udf error srihari FLUENT 1 October 31, 2016 14:18
[snappyHexMesh] SnappyHexMesh for internal Flow vishwa OpenFOAM Meshing & Mesh Conversion 24 June 27, 2016 08:54
blockMesh prism undefined faces flowris OpenFOAM 3 May 25, 2010 11:07
[snappyHexMesh] external flow with snappyHexMesh chelvistero OpenFOAM Meshing & Mesh Conversion 11 January 15, 2010 19:43
[blockMesh] BlockMeshmergePatchPairs hjasak OpenFOAM Meshing & Mesh Conversion 11 August 15, 2008 07:36

All times are GMT -4. The time now is 16:12.