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December 3, 2019
Altair has released Altair EDEM 2020, the market leading Discrete Element Method (DEM) software for bulk and granular material simulation.
EDEM is used for virtual testing of equipment that handles or processes bulk materials in the mining, equipment manufacturing and process industries. Companies worldwide use EDEM to optimize equipment design, increase productivity, reduce operational costs, shorten product development cycles and drive product innovation, the company reports.
EDEM 2020 from DEM Solutions Ltd., recently acquired by Altair, allows for faster workflows, and includes new tools for quicker and easier simulation setup. The new release also includes new coupling solutions with multi-body dynamics software AltairMotionSolve and open source, computational fluid dynamics (CFD) software OpenFOAM.
“Speed has been an important focus for our development work and successive releases have been concentrated on implementing EDEM capabilities for GPU technology, so all users benefit from significant speed up of their simulations,” said Mark Cook, Altair product manager for EDEM. “With EDEM 2020 we are now addressing simulation set-up and introducing advanced capabilities such as Meta-Particles for simulating flexible fibers and Motion Control for advanced geometry movement. Additionally, there are new tools such as sphere fitting which are now standard features in EDEM.”
EDEM 2020 highlights include:
New Sphere Fitting Tool
EDEM can simulate any size and shape of material using the computationally efficient and well validated multi-sphere method. In this method, shape is introduced by overlapping multiple spheres and, by increasing the number of overlapping spheres, it allows for increased shape fidelity. With the new Sphere Fitting tool, users no longer must manually arrange spheres to create the shape they want to represent. The tool automatically builds a multi-sphere particle that closely matches an imported particle shape from a CAD file. Users can control the number of spheres used, as well as restrict the minimum sphere size. This tool means users can get the benefit of efficient multi-sphere simulation without the effort of building the particle shape.
Meta Particles Creation
Many industry applications involve material that is flexible or elongated in nature, such as fibers, agricultural crops and grass. Meta Particles, introduced in the EDEM Creator, enables users to easily create groups of particles to create flexible fibers through the use of a Bonded Model that has been updated to support Meta Particles. It is also fully GPU compliant. This significantly reduces the time and effort needed to set up a simulation for flexible particles and enables all users to create such material in a straight-forward manner.
Material Block Dynamic Factory
EDEM has previously introduced a Bed Generation Tool (also known as Material Block) that enables users to generate large beds of material quickly and easily by copying and arranging smaller blocks of material. With EDEM 2020 this capability has been extended to operate as a ‘dynamic factory’ meaning the same block of material can be automatically introduced in a simulation at regular intervals. This works well where batching occurs naturally, such as screw augers, belted conveyors, balers and more. This capability is a powerful way to enable the output of one simulation to be used as input to another simulation without having to re-run it, saving significant amounts of time.
A motion control capability is now available, enabling users to easily introduce motions to geometries that occur due to force or torque being applied. Previously only possible via EDEM’s coupling interface, this capability to add force and torque is now available directly from the EDEM Creator and can be combined with regular kinematics. This creates a powerful environment to easily define a broad range of geometry movements to match real-life equipment movement.
On the solver side, EDEM 2020 benefits from further speed improvements. Benchmarks have shown great speed-up when using GPU, as opposed to CPU only, with some standard examples showing a speed-up of up to 15 times when using a high-end GPU card versus 12 CPUs. The GPU solver is compatible with API models and the EDEM coupling interface enables all users to benefit from a speed-up regardless of how complex the simulation.
The full list of enhancements available in EDEM 2020 can be found in the Release Notes here (login required).
Sources: Press materials received from the company and additional information gleaned from the company’s website.
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