Local particle refinement in DEM reduces particle count by 2.3 to 25 times and simulation time by 3.1 to 43 times while keeping normalized error between 3.4% and 11% versus a uniform high-resolution reference.
Coetzee, Particle upscaling: Calibration and validation of the discrete element method, Powder technology 344 (2019) 487–503
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Local particle refinement in terramechanical simulations
Local particle refinement in DEM reduces particle count by 2.3 to 25 times and simulation time by 3.1 to 43 times while keeping normalized error between 3.4% and 11% versus a uniform high-resolution reference.