Oblique impact of frictionless spheres: On the limitations of hard sphere models for granular dynamics

Müller P, Pöschel T (2012)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2012

Journal

Granular Matter Springer Verlag (Germany)

Publisher: Springer Verlag (Germany)

Book Volume: 14

Pages Range: 115-120

Journal Issue: 2

DOI: 10.1007/s10035-012-0324-5

Abstract

When granular systems are modeled by hard spheres, particle-particle collisions are considered as instantaneous events. This implies that while the velocities change according to the collision rule, the positions of the particles are the same before and after such an event. We show that depending on the material and system parameters, this assumption may fail. For the case of viscoelastic particles we present a universal condition which allows to assess whether hard-spheremodeling and, thus, event-driven Molecular Dynamics simulations are justified. © Springer-Verlag 2012.

Authors with CRIS profile

Patric Müller Lehrstuhl für Multiscale Simulation of Particulate Systems Thorsten Pöschel Lehrstuhl für Multiscale Simulation of Particulate Systems

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials

How to cite

APA:

Müller, P., & Pöschel, T. (2012). Oblique impact of frictionless spheres: On the limitations of hard sphere models for granular dynamics. Granular Matter, 14(2), 115-120. https://dx.doi.org/10.1007/s10035-012-0324-5

MLA:

Müller, Patric, and Thorsten Pöschel. "Oblique impact of frictionless spheres: On the limitations of hard sphere models for granular dynamics." Granular Matter 14.2 (2012): 115-120.

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