Granular Flow with wet effect

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1

Dear Lammps users,

I am very use to lammps and I am learning it by looking at some of the examples in the example dir. I am trying to model granular flow using lammps. Here is what I am trying to model.

  1. The granular particles with density d flow on to the ground surface (2d plane) with velocity v
  2. they stay/stick to the surface for a while
  3. They develop a kind of wet/slurry effect while they stay on ground because of which there is a change in their density from d to d’

I was looking at example/pour files for the granular pour as my starting point. Can anyone please tell me whether it is possible to model this phenomenon using lammps. How should the structure of input look like. Anyone has done anything like this before? Any help will be greatly appreciated.

Regards

Jai

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Hi Jai,

  If you are looking at example/pour files for the granular pour as starting point, you need to use LIGGGHTS (http://www.liggghts.com/).
I am pretty sure that LIGGGHTS and the discrete element method will be convenint for you.

See you soon on the LIGGGHTS forum

Regards
JF

3

Actually the pour examples just use the granular models in standard LAMMPS.
However those particle/particle models are purely repulsive
with normal and tangential friction. If you want "wet" then should
check out LIGGGHTS, since it has additional models including the
option to couple to a fluid solver, OpenFoam. Also Jeremy Lechman
at Sandia has developed a granular model for LAMMPS that
has cohesion between particles. I've CCd him on this message.

Steve