Contact of granular particles and the simulation of rapid flows using event-driven molecular dynamics

Pöschel T, Brilliantov N, Formella A, Heckel M, Kruelle C, Müller P, Salueña C, Schwager T (2008)

Publication Language: English

Publication Type: Journal article

Publication year: 2008

Journal

European Journal of Environmental and Civil Engineering Taylor and Francis Inc.

Publisher: Taylor and Francis Inc.

Book Volume: 12

Pages Range: 827--870

Journal Issue: 7-8

DOI: 10.3166/ejece.12.827-870

Abstract

We discuss several models for granular particles commonly used in Molecular Dynamics simulations of granular materials, including spheres with linear dashpot force, viscoelastic spheres and adhesive viscoelastic spheres. Starting from the vectorial interaction forces we derive the coefficients of normal and tangential restitution as functions of the vectorial impact velocity and of the material constants. We review the methods of measurements of the coefficients of restitution and characterize the coefficient of normal restitution as a fluctuating quantity. Moreover, the scaling behavior and the influence of different force laws on the dynamical system behavior are discussed. The powerful method of event-driven Molecular Dynamics is described and the algorithmic simulation technique is explained in detail. Finally we discuss the limitations of event-driven MD.

Authors with CRIS profile

Thorsten Pöschel Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS) Michael Heckel Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS) Patric Müller Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

Involved external institutions

Charité - Universitätsmedizin Berlin DE Germany (DE) University of Vigo / Universidade de Vigo ES Spain (ES) Universität Karlsruhe DE Germany (DE) Universitat de Barcelona (UB) / University of Barcelona ES Spain (ES)

How to cite

APA:

Pöschel, T., Brilliantov, N., Formella, A., Heckel, M., Kruelle, C., Müller, P.,... Schwager, T. (2008). Contact of granular particles and the simulation of rapid flows using event-driven molecular dynamics. European Journal of Environmental and Civil Engineering, 12(7-8), 827--870. https://doi.org/10.3166/ejece.12.827-870

MLA:

Pöschel, Thorsten, et al. "Contact of granular particles and the simulation of rapid flows using event-driven molecular dynamics." European Journal of Environmental and Civil Engineering 12.7-8 (2008): 827--870.

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