Title
Particle based simulations with DEMeter plus Particle based simulations with DEMeter plus
Author
Faculty/Department
Faculty of Sciences. Mathematics and Computer Science
Publication type
article
Publication
. :. ,
Subject
Biology
Source (journal)
Acta horticulturae / International Society for Horticultural Science. - 's Gravenhage
Volume/pages
(2005) :674 , p. 123-129
ISSN
0567-7572
ISI
000230885900013
Carrier
E
Target language
English (eng)
Abstract
Particle Based Simulation (PBS) methods, such as the Discrete Element Method (DEM), are the natural choice for simulating phenomena related to granular media. DEM bares close resemblance to Molecular Dynamics (MD) and is ideally suited for solving problems with granular media. Both DEM and MD sum up the forces acting on the particles and integrate Newton's equations of motion over time. In doing so, the technique predicts the path of every particle in the ensemble as time proceeds as well as the forces it experiences. Other PBS methods, like Smooth Particle Hydrodynamics (SPH) or Dissipative Particle Dynamics (DPD) are suited for solving problems in the realm of continuum mechanics with fast moving boundaries. They treat the continuum materials as a collection of material particles. The Laboratory for Agricultural Machinery and Processes has built a thorough expertise in Particle Based Simulation methods for general applications. It has developed a C++ software framework, DEMeter++, offering an extensible toolkit for the creation of efficient PBS simulators in short time. At this moment several research projects involving the simulation of dynamical behavior of granular media and related phenomena are carried out using this DEMeter++ library. The intermediate results of these projects will be presented in this paper.
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