Restart from last state and begin with a new fluid condition

Submitted by lcraul on Mon, 05/20/2019 - 21:46

Helle, everyone.
I'm trying to simulate the particle plugging behavior in a fracture. I have done the particle plugging simulation so far. The particles has formed a plugging successfully in my case. Next, I want change the flowrate of the fluid phase only to see whether the formed parcticle plugging can bear large perssure. I know it wil use the restart, but I don't exactly how to start. In the new case, the begining state is the end state of the old case. And the fluid flow rate will be changed to simulate an increasing pressure and no more particle will be inserted. Anyone has some suggestions? Thank you very much.

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alice's picture

alice | Thu, 05/23/2019 - 10:24

Hi,

there is an example for such a case in the tutorials (cfdemSolverPiso/ErgunTestMPI_restart).

You have to adjust the liggghts input script (load the correct restart file), the couplingProperties script (if you want to use a liggghts input script with another name), the liggghtsCommands file (in order not to overwrite your original restart file) and the system/control dict (change start and end time of the simulation).

Cheers,

Alice