CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Floating point exception after changing from straight pipe to bend

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

LinkBack Thread Tools Search this Thread Display Modes
Old   January 25, 2016, 10:39
Post Floating point exception after changing from straight pipe to bend
Join Date: Sep 2013
Location: Delft, The Netherlands
Posts: 63
Rep Power: 11
Zen is on a distinguished road

I simulated a straight pipe like the one you see in the figure below with uniform bc's for U, k and epsilon and everything went fine.

I then used the same bc's and configuration files to simulate a bend like the one in figure below but I get 'floating point exception' and the simulation crashes before the first iteration.

Can anyone give me a hint on what's happening here?


Attached Images
File Type: png straightpipe.png (20.9 KB, 13 views)
File Type: jpg bend1.jpg (36.5 KB, 13 views)
File Type: png bend2.png (3.5 KB, 10 views)
Zen is offline   Reply With Quote

Old   March 13, 2016, 10:04
Senior Member
Artur's Avatar
Join Date: May 2013
Location: Southampton, UK
Posts: 372
Rep Power: 18
Artur will become famous soon enough
If it crashes before the 1st iteration something is definitely wrong with your setup or, more likely, the new mesh. Posting the actual log file would help. Run checkMesh -allTopology -allGeometry as well to convince yourself there aren't any obvious errors in the grid.

All the best,

Artur is offline   Reply With Quote


floating point error, pipe bend

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
icoFoam floating point exception (8) leizhao512 OpenFOAM Running, Solving & CFD 7 November 1, 2018 12:43
[PyFoam] having problems with pyfoam Installation vitorspadetoventurin OpenFOAM Community Contributions 3 December 2, 2014 08:18
Pipe flow in settlingFoam floating point exception jochemvandenbosch OpenFOAM Running, Solving & CFD 4 February 16, 2012 04:24
Floating point exception error with small DeltaT rassilon OpenFOAM Running, Solving & CFD 19 September 2, 2009 08:39
[Gmsh] Gmsh and samplesurface touf OpenFOAM Meshing & Mesh Conversion 2 December 10, 2007 03:27

All times are GMT -4. The time now is 12:22.