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Re: [Yade-dev] Open Source DEM with LAMMPS


Hi, Christoph Kloss:

I am so glad to see there is another code for DEM-CFD coupling since this has been my PhD topic, I also coupled YADE with OpenFOAM:


I think you and I should be using the same approach originated from Prof. Tsuji?

I would be very like to discuss some of the details with you, such as:

1. FVM size/particle size
2. The maximum particle number possible on a cluster
3. The parallel mechanism
4. What kind of problem/type of flow you use in your problem?
5. Is it easy to change/create new particle constitution laws for the solid phase?
6. Effect of different drag equations


Thank you for sharing your experience with us!!!

Feng Chen

-----Original Message-----
From: yade-dev-bounces+fchen3=utk.edu@xxxxxxxxxxxxxxxxxxx on behalf of Christoph Kloss
Sent: Wed 10/7/2009 6:11 AM
To: yade-dev@xxxxxxxxxxxxxxxxxxx; yade-users@xxxxxxxxxxxxxxxxxxx
Subject: [Yade-dev] Open Source DEM with LAMMPS
Dear yade users and developers,

I would like to bring the DEM capabilities of LAMMPS to your attention.
LAMMPS is an open source
molecular dynamics code that also provides possibilities for DEM simulations

(thanks to algorithmic and physical analogies). LAMMPS is on the open source
"market" since the mid90s.
It is thus quite mature, very fast and provides excellent documentation. 

Please refer to the homepage http://lammps.sandia.gov/ for download and

For some simulation examples, please refer to

The final movie ( http://lammps.sandia.gov/movies/gran_openfoam.avi ) shows
a new capability that
my colleague Christoph Goniva and I have developed to perform CFD-DEM
simulations by coupling LAMMPS
to the OpenFoam computational fluid dynamics (CFD) package. This allows us
to run CFD-DEM simulations
on clusters using MPI parallelism.

Some more videos and sample input scripts can be found at

LAMMPS is written in C++ and very easy to modify. If you are interested in
LAMMPS, you are welcome 
to contact me! I would be happy if YADE and LAMMPS could profit from each

Kind regards from Austria,

Christoph Kloss

Dipl.-Ing. Christoph Kloss
Christian-Doppler Laboratory on Particulate Flow Modelling
Institute of Fluid Mechanics and Heat Transfer
Johannes Kepler University,
Altenbergerstrasse 69, A-4040 Linz/Austria

e-mail: christoph.kloss@xxxxxx
phone: +43-(0)732-2468-6476
fax: +43-(0)732-2468-6462
web: fluid.jku.at

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