ESyS-Particle is a software package for particle-based numerical modelling. It implements the Discrete Element Method (DEM), a widely used technique for modelling processes involving large deformations, granular flow and/or fragmentation.
ESyS-Particle is designed for execution on parallel supercomputers, clusters or multi-core PCs running a Linux-based OS. The C++ simulation engine implements spatial domain decomposition via the Message Passing Interface (MPI). A Python wrapper API provides flexibility in the design of numerical models, specification of modelling parameters and contact logic, and analysis of simulation data.
ESyS-Particle has been utilised to simulate earthquake nucleation, comminution in shear cells, silo flow, rock fragmentation, and fault gouge evolution, to name but a few applications.
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Here are some key features of "ESyS-Particle Live DVD":
· 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
· heat transfer via conduction between contacting particles
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