The ESyS-Particle Community Wiki, http://www.esys-particle.org/, provides additional resources to support users of the software.

The latest stable release of ESyS-Particle is available as a source-code tarball at https://launchpad.net/esys-particle/trunk/2.3.5.

The latest stable release of GenGeo, a library for creating complex particle geometries for use in ESyS-Particle simulations, is available as a source-code tarball at https://launchpad.net/esys-particle/+milestone/gengeo-1.4.

New users are encouraged to read the ESyS-Particle Tutorial:
https://launchpad.net/esys-particle/trunk/2.3.5/+download/ESyS-Particle_Tutorial.pdf

The ESyS-Particle Python API Documentation is available at:
http://esys.geocomp.uq.edu.au/esys-particle_python_doc/current/pythonapi/html/index.html

FEATURES
   * MPI parallel simulation engine
   * Python API for simulation setup and execution
   * scriptable setup of model geometry
   * non-rotational and rotational spherical particles
   * triangular meshes for specifying boundary conditions and walls
   * scriptable visualisation of particle assemblies utilising POVray and VTK
   * a variety of particle-particle and particle-wall interaction laws
         * linear elastic repulsion between unbonded contacting particles
         * linear elastic bonds between bonded particle-pairs
         * both non-rotational and rotational frictional interactions between unbonded particles
         * rotational bonds implementing torsion and bending stiffnesses in addition to normal and shear stiffnesses

DEVELOPMENT HISTORY
The Centre for Geoscience Computing at the University of Queensland, Brisbane, Australia is the developer and custodian of ESyS-Particle, where it has been developed in-house since 1994. The software has its roots in algorithms developed by Professor Peter Mora and co-workers from 1992 at IPG, Paris. It was originally called the Lattice Solid Model and later LSMEarth before the Australian Computational Earth Systems Simulator (ACcESS) Major National Research Facility commenced funding software development in 2002. From 2002-2007, ACcESS MNRF funding resulted in rapid development of ESyS-Particle into commercial-grade DEM software, released freely under the Apache License 2.0 (http://www.apache.org/licenses/LICENSE-2.0). ESyS-Particle software development continues to be funded under the Australian Government AuScope National Collaborative Research Infrastructure Strategy. One of the key developers, Steffen Abe, is now based at the Institute for Geothermal Resource Management, Germany and continues to actively contribute towards ESyS-Particle development.

CONTRIBUTORS
S. Abe
C. Altinay
V. Boros
F. Chen
A. Gladky
M. Griffa
J. Gao
W. Hancock
L. Heredia
S. Latham
P. Mora
W. Pettersson
D. Place
J. Rahardjo
P. Richeri
Q. Shao
G. Tancredi
Y. Wang
D. Weatherley

GET INVOLVED
The ESyS-Particle software development team is always willing to welcome new developers interested in contributing to the code-base. If you would like to contribute, please contact Dion Weatherley (mailto:d.weatherley@uq.edu.au).