Novel efficient hybrid-DEM collision integration scheme

Conference paper (2017)

Authors

Kay A. Buist Eindhoven University of Technology
L. J.H. Seelen Eindhoven University of Technology
Niels G. Deen Eindhoven University of Technology
J.T. Padding Intensified Reaction and Separation Systems - Mechanical, Maritime and Materials Engineering
Johannes Alfonsius Maria Kuipers Eindhoven University of Technology
Research Group
Intensified Reaction and Separation Systems (Mechanical, Maritime and Materials Engineering) (TU Delft)
More Info
expand_more

Published Date

2017

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Intensified Reaction and Separation Systems

Abstract

A hybrid collision integration scheme is introduced, benefiting from the efficient handling of binary collisions in the hard sphere scheme and the robust time scaling of the soft sphere scheme. In typical dynamic dense granular flow, simulated with the soft sphere scheme, the amount of collisions involving more than two particles are limited, and necessarily so because of loss of energy decay otherwise. Because most collisions are binary, these collisions can be handled within one time step without the necessary numerical integration as needed in a soft sphere method. The remainder of the collisions can still be handled with the classical soft sphere scheme. In this work the hybrid collisions integration scheme is shortly described and tested with a bounding box problem. The hybrid scheme is capable of solving the same problem as a classic soft sphere scheme but is roughly one order of magnitude faster.

Files

779.pdf
(.pdf | 0.628 Mb)

Download not available