Running equations with different time steps inside a solver

Tarak · September 17, 2011, 23:34

Hii,

I would like to run 2 equations (say k and epsilon) with different time steppings (eg k would have dt=.01 and epsilon would have dt= .001). Can someone please let me know how is it possible in OF?

Thanks.

marupio · September 18, 2011, 23:06

You might want to look into multiSolver:

http://openfoamwiki.net/index.php/Contrib_multiSolver

Note: not tested on version 2.x.x yet.

Mind you, it sounds like you are solving an fvMatrix for these two equations within the same solver loop... multiSolver wasn't intended for this, and probably is not very suitable.

September 17, 2011, 23:34	Running equations with different time steps inside a solver	#1
Tarak Senior Member Tarak Join Date: Aug 2010 Location: State College, PA Posts: 111 Rep Power: 16	Hii, I would like to run 2 equations (say k and epsilon) with different time steppings (eg k would have dt=.01 and epsilon would have dt= .001). Can someone please let me know how is it possible in OF? Thanks.

September 18, 2011, 23:06		#2
marupio Senior Member David Gaden Join Date: Apr 2009 Location: Winnipeg, Canada Posts: 437 Rep Power: 22	You might want to look into multiSolver: http://openfoamwiki.net/index.php/Contrib_multiSolver Note: not tested on version 2.x.x yet. Mind you, it sounds like you are solving an fvMatrix for these two equations within the same solver loop... multiSolver wasn't intended for this, and probably is not very suitable. __________________ ~~~ Follow me on twitter @DavidGaden

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