CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Floating point exception[overflow] error in Star CCM+

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 3, 2019, 06:20
Default Floating point exception[overflow] error in Star CCM+
  #1
New Member
 
Akhil Balagopalan
Join Date: Apr 2018
Posts: 3
Rep Power: 3
bgakhil is on a distinguished road
I was trying to estimate the resistance of KCS in shallow water condition using Star CCM+. I reduced the height of domain and made bottom as no slip wall condition. but everytime i am encountering with floating point exception error. I tried mesh refining so many times and reduced the time step upto 0.00001s also. Still error is same.
But the same simulation is working fine with deeper domain.
I was following the exercise given in Star CCM+ tutorial. Can somebody help me to solve the problem.
bgakhil is offline   Reply With Quote

Old   May 8, 2019, 05:21
Default
  #2
Member
 
Steve
Join Date: Mar 2018
Location: South Korea
Posts: 69
Rep Power: 3
steve lee is on a distinguished road
Hi,
You should explain more detail and attach picture.. no one can help you without simulation information..
when floating point problem occurs you should check

1. mesh problem
2. B.C problem
3. I.C problem
4. time step control
5. relaxation factor control
steve lee is offline   Reply With Quote

Old   July 2, 2019, 01:48
Default
  #3
New Member
 
Akhil Balagopalan
Join Date: Apr 2018
Posts: 3
Rep Power: 3
bgakhil is on a distinguished road
Dear steve
Thanks for your reply.
Boundary conditions are correct. I tried with a time step of 0.0001 s but still encountered the same error. Under relaxation factor also i varied. But there was no use. Can u help to solve the problem if i attach the simulation file after clearing the mesh...
bgakhil is offline   Reply With Quote

Reply

Tags
floating point exception, overflow, star ccm+

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
Transition point prediction in Star CCM rishabhk28 STAR-CCM+ 2 April 30, 2018 23:59
icoFoam - Floating point exception (core dumped) File OpenFOAM Running, Solving & CFD 25 April 26, 2016 13:03
[snappyHexMesh] How to define to right point for locationInMesh Mirage12 OpenFOAM Meshing & Mesh Conversion 7 March 13, 2016 15:07
Floating point error and divergence detected aannjj FLUENT 0 July 2, 2013 04:44
a reconstructPar issue immortality OpenFOAM Post-Processing 8 June 16, 2013 12:25


All times are GMT -4. The time now is 09:06.