Hi all,
I am looking for a method of deleting a certain fraction of fine particles with a determined diameter. In my simulation, I have two sizes of atoms, i.e. d=0.2mm (20% in mass) and d=2.0mm (80% in mass). I want to arbitrarily delete 50% of the atoms with d=0.2mm. I try to use the command "delete_atom porosity" but it seems no use because this function can only delete a certain fraction of particles inside a determined region. Could anyone give me any clues about how to delete fine particles with d=0.2mm to a certain fraction randomly in the calculation system? Any suggestions are greatly appreciated.
Best,
Rachel