CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Final result changes if simulation is interrupted and restarted

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 16, 2021, 07:34
Default Final result changes if simulation is interrupted and restarted
  #1
New Member
 
Raoul
Join Date: Apr 2021
Posts: 16
Rep Power: 5
rol97 is on a distinguished road
Hi everyone, I am dealing with a nonNewtonian laminar flow that I solve through a customized Pimple solver (as more equation are required). I have recently noticed that if I stop the simulation and then I restart from the latest time step the results will considerably change with respect to the ones obtained not stopping the simulation.

I am stopping the simulation in a forced way (I know it is not optimal, but I always make sure through the log that the "latest" folder has been written completely). After that, when I restart from "latestTime" everything starts changing, reaching after a couple of seconds a completely different state.

I am using the adaptive time step, but after I restart, the time step value is the same of the unarrested one.

Do you have any suggestion about this? Did it ever occur to you?
rol97 is offline   Reply With Quote

Reply

Tags
restart problem, results variation


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
Continuous vs interrupted simulation sega OpenFOAM Running, Solving & CFD 4 November 3, 2008 15:29


All times are GMT -4. The time now is 09:00.