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

periodic (cyclic) boundary - fluent3DMeshToFoam

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

LinkBack Thread Tools Search this Thread Display Modes
Old   October 3, 2017, 18:42
Default periodic (cyclic) boundary - fluent3DMeshToFoam
Senior Member
Join Date: Jul 2016
Posts: 102
Rep Power: 9
cyln is on a distinguished road

My computational domain has a shape of slice of a cylinder. I have generated my mesh on this domain using ICEM. Two sides are defined as periodic boundaries. However, when I use fluent3DMeshToFoam to convert the mesh in OpenFOAM, the software faces issues due to the periodic (cyclic) boundary.

A suggested alternative way is to define these periodic boundaries, lets say as symmetry boundaries, then convert the mesh using fluent3DmeshToFoam. Then you use createPatch funtion ( via createPatchDict file) to convert your symmetry boundaries to cyclic boundaries.

I performed these steps. I modified createPatchDict file as suggested. When I run createPatch, at the beginning, it works fine but I get the following error at the end.

For patch SIDE11 there are 159185 face centres, for the neighbour patch SIDE22 there are 160271

From function void Foam::cyclicPolyPatch::calcTransforms(const primitivePatch&, const pointField&, const vectorField&, const pointField&, const vectorField&)
in file meshes/polyMesh/polyPatches/constraint/cyclic/cyclicPolyPatch.C at line 156.

FOAM exiting

Obviously, the number of face centres are different on each side. Is there any way to solve this problem? I would appreciate any suggestion

cyln is offline   Reply With Quote

Old   October 17, 2017, 02:59
New Member
Join Date: Nov 2016
Posts: 4
Rep Power: 8
asin is on a distinguished road
maybe there is something wrong with your createPatchDict
asin is offline   Reply With Quote


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
sliding mesh problem in CFX Saima CFX 46 September 11, 2021 07:38
Basic Nozzle-Expander Design karmavatar CFX 20 March 20, 2016 08:44
Radiation interface hinca CFX 15 January 26, 2014 17:11
An error has occurred in cfx5solve: volo87 CFX 5 June 14, 2013 17:44
New topic on same subject - Flow around race car Tudor Miron CFX 15 April 2, 2004 06:18

All times are GMT -4. The time now is 07:38.