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

time step in interFoam

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

LinkBack Thread Tools Search this Thread Display Modes
Old   January 26, 2011, 08:22
Default time step in interFoam
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,266
Blog Entries: 1
Rep Power: 24
nimasam is on a distinguished road
hi dear foamer
i simulated stephan problem ( phase Change ) with open Foam a modified version of interFoam, now im going to compare the result with analytical solution, unfortunately time is making me messed up! what is the time ? it seems stupid but the question is?
1) is this time real time ( physical time on second ) ?

2) if yes, so could some one tell me whats the difference between timeStep,adjustableRunTime and runTime

P.S :
im using an implicit method to solve alpha1 equation in interFoam.
nimasam is offline   Reply With Quote

Old   January 26, 2011, 11:37
Wink Hope these are helpful
Join Date: Dec 2010
Location: USA
Posts: 85
Rep Power: 15
cheng1988sjtu is on a distinguished road
timeStep:write data every N time steps, where N is defined in writeInterval;

runTime: write data every t seconds, t is the simulated time which is defined in writeInterval;

write data every t seconds, used in cases with automatic time step adjustment, it will change the time step to conincide with the writeInterval;

Basically, the three methods mentioned above are simulated flow time.

In caomparison, cpuTime and clockTime is not flowtime, it's either related to the time in windows clock, or in CPU time.

If I'm wrong, please let me~
cheng1988sjtu is offline   Reply With Quote


adjustableruntime, interfoam, runtime, time step

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
Physical Reason for stability of Implicit Schemes? radhakrishnan Main CFD Forum 26 October 3, 2023 22:05
HELP! time step too small? meangreen Main CFD Forum 6 May 31, 2018 10:41
Hydrostatic Pressure and Gravity miliante OpenFOAM Running, Solving & CFD 132 October 7, 2012 22:50
calculation diverge after continue to run zhajingjing OpenFOAM 0 April 28, 2010 04:35
Overflow problem in steady simulation ReeKo CFX 11 October 8, 2008 17:57

All times are GMT -4. The time now is 03:37.