CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM Mesh Utilities

stitchMesh -perfect - tolerance error of 2 identical faces

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

LinkBack Thread Tools Display Modes
Old   July 16, 2012, 05:30
Default stitchMesh -perfect - tolerance error of 2 identical faces
New Member
Join Date: Dec 2010
Location: Oldenburg, Germany
Posts: 17
Rep Power: 8
Hanno is on a distinguished road
Hi Foamers,

after reading all stitchMesh regarding threads, i decided to start a new one. I meshed 2 parts of a rectangular channel with blockMesh and now im trying to merge the meshes. mergeMesh works with no problem, and after it, i got 2 regions in the mesh and some non-aligned edges.
So i go to stitchMesh next, but it aways complains about:

Points on patch sides do not match to within tolerance 1.1156e-06

    From function perfectInterface::setRefinement(polyTopoChange& ref) const
    in file perfectInterface/perfectInterface.C at line 220.

FOAM exiting
Searching started from:46536 in pts1
    Compared coord:(0.123884 0.0725446 0.0357143) with difference to point 0.28485
    Compared coord:(-0.111607 -0.0904018 0.0357143) with difference to point 0.0150151
Compared coord:(0.120536 0.078125 0.0357143) with difference to point 0.285685
Cannot find point in pts1 matching point 14834 coord:(0.101563 -0.101563 0.0357143) in pts0 when using tolerance 1.1156e-06
for every point.

I have checked the 2 faces that shoud be stiched with paraView, they are absolutely identical, the geometry is most simple. The tolerance between the points should be zero, instead its pretty high, as you can see.

I have absolutely no idea whats going wrong here, since the test-case with a very coarser mesh worked perfectly.

Thanks for reading
Hanno is offline   Reply With Quote

Old   November 21, 2013, 06:41
Senior Member
Albrecht vBoetticher
Join Date: Aug 2010
Location: Zürich, Swizerland
Posts: 215
Rep Power: 10
vonboett is on a distinguished road
have you tried without -perfect (=integral)?
vonboett 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
[Other] Mesh Importing Problem cuteapathy ANSYS Meshing & Geometry 2 June 24, 2017 05:29
No layers in a small gap bobburnquist OpenFOAM Native Meshers: snappyHexMesh and Others 6 August 26, 2015 09:38
snappyHexMesh won't work - zeros everywhere! sc298 OpenFOAM Native Meshers: snappyHexMesh and Others 2 March 27, 2011 21:11
DecomposePar unequal number of shared faces maka OpenFOAM Pre-Processing 6 August 12, 2010 09:01
external flow with snappyHexMesh chelvistero OpenFOAM 11 January 15, 2010 20:43

All times are GMT -4. The time now is 21:29.