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Potential Discrete Element Simulation Applications Ranging from Airborne Fines to Pellet Beds
Technical Paper
2004-01-2329
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Under micro-gravity, lack of sedimentation allows all scales of airborne particulates to participate in the formation of clusters and aggregates. As observed in the International Space Station (ISS), the resulting very-low-density dust aggregates can collect on ventilation inlet screens and duct walls. Discrete Element Method (DEM) simulations, utilizing cohesive interparticle forces and bending-moment interactions, are a tool that can assist in understanding the build-up, compaction, and removal of such agglomerate beds. At a different length-scale, high pellet-pellet contact stresses can be developed in the thermally cycled packed granular beds of air revitalization equipment (possibly fracturing pellets and/or producing unwanted fines). The limits and capabilities of DEM models to simulate these and other particulate systems is discussed.
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Citation
Walton, O., "Potential Discrete Element Simulation Applications Ranging from Airborne Fines to Pellet Beds," SAE Technical Paper 2004-01-2329, 2004, https://doi.org/10.4271/2004-01-2329.Also In
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