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

pimpleDyMFoam constantly giving floating point exception and solution divergence

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

LinkBack Thread Tools Display Modes
Old   November 28, 2013, 01:53
Default pimpleDyMFoam constantly giving floating point exception and solution divergence
Join Date: Oct 2013
Posts: 58
Rep Power: 6
fedvasu is on a distinguished road
I tried to study propeller case as carefully as I could and closely followed its structure an defaults for my case. I need to simulate flow in a closed room due to a rotating object like a fan.

I am using wall BC for all the faces of my 'box' and using cyclicAMI to rotate my fan, the AMI patch has radius twice as much as that of fan.

I keep getting floating point exception every time running pimpleDyMFoam, I am using k-e RAS model. I circumvent the floating point exception by unset FOAM_SIGFPE. my simulation blows well before 0.1 seconds

but how do I know what the main problem is? why is FOAM_SIGFPE significant?

are my boundary conditions OK? propellor case doesn't go floating point exception even though the initial conditions stay as they are for AMI patches.

please ask me more info, I will provide except for geometry. (I mean all dicts and 0 folder i can provide).
fedvasu is offline   Reply With Quote


pimpledymfoam, solver

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
Divergence problem Smaras FLUENT 13 February 21, 2013 06:03
Inlet Velocity Profile BC - Floating Point exception during solution initialization Janshi STAR-CCM+ 4 March 14, 2012 11:21
Finished simulation doesn't start: floating point exception [Divide by zero] MaxCFD STAR-CCM+ 3 June 26, 2011 10:31
what is linear solution and a floating point exception? dada1204 CFX 1 November 5, 2010 03:42
floating point exception? syd STAR-CCM+ 3 April 20, 2010 18:55

All times are GMT -4. The time now is 10:43.