Time step

Submitted by maz on Tue, 12/06/2011 - 07:11

Hi all!
I am new to LIGGGHTS and want to simulate granular gas. As suggested by Christoph that LIGGGHTS can be used to simulate granular gas but the time-step has to obey the Hertz criterion.
But i dont know how to calculate the value of time step which obey the Hertz criterion especially with vibrating boundaries.
If somebody can help me or guide me, i will be thankful. I am not finding a proper way to calculate time step value.

Maz

ckloss's picture

ckloss | Tue, 12/06/2011 - 14:41

you can use fix check/timestep/gran to do this. Effect of a vibrating wall is included if the wall is a mesh wall

Christoph