Adaptive time stepping

badri1979 · September 25, 2006, 14:08

Hi All,

I am sure many of you would have come across the need for adaptive time-stepping. Is there any provision in OpenFOAM to do that. Any simple algorithm will do.

For e.g. if the velocity does not converge. Start again from the previous time step value with a reduced time step = (some factor)(current time step). Likewise for increase of time step.

Thanks,
Badri

mattijs · September 26, 2006, 03:50

Check out e.g. interFoam (setDeltaT.H). It has dynamic timestep control (based on previous time step Courant number)

September 25, 2006, 14:08	Hi All, I am sure many of y	#1
badri1979 New Member Badri Velamur Asokan Join Date: Mar 2009 Location: Oak Ridge, TN Posts: 7 Rep Power: 17	Hi All, I am sure many of you would have come across the need for adaptive time-stepping. Is there any provision in OpenFOAM to do that. Any simple algorithm will do. For e.g. if the velocity does not converge. Start again from the previous time step value with a reduced time step = (some factor)(current time step). Likewise for increase of time step. Thanks, Badri

September 26, 2006, 03:50	Check out e.g. interFoam (setD	#2
mattijs Senior Member Mattijs Janssens Join Date: Mar 2009 Posts: 1,419 Rep Power: 26	Check out e.g. interFoam (setDeltaT.H). It has dynamic timestep control (based on previous time step Courant number)

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