Energy decay in a granular gas collapse

Almazan Torres L, Serero D, Salueña C, Pöschel T (2017)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2017

Journal

New Journal of Physics Institute of Physics: Open Access Journals / Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft

Book Volume: 19

Article Number: 013001

DOI: 10.1088/1367-2630/aa5598

Abstract

An inelastic hard ball bouncing repeatedly off the ground comes to rest in finite time by performing an infinite number of collisions. Similarly, a granular gas under the influence of external gravity, condenses at the bottom of the confinement due to inelastic collisions. By means of hydrodynamical simulations, we find that the condensation process of a granular gas reveals a similar dynamics as the bouncing ball. Our result is in agreement with both experiments and particle simulations, but disagrees with earlier simplified hydrodynamical description. Analyzing the result in detail, we find that the adequate modeling of pressure plays a key role in continuum modeling of granular matter.

Authors with CRIS profile

Lidia Almazan Torres Lehrstuhl für Multiscale Simulation of Particulate Systems Dan Serero 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

Involved external institutions

Universitat Rovira i Virgili (URV) ES Spain (ES)

How to cite

APA:

Almazan Torres, L., Serero, D., Salueña, C., & Pöschel, T. (2017). Energy decay in a granular gas collapse. New Journal of Physics, 19. https://dx.doi.org/10.1088/1367-2630/aa5598

MLA:

Almazan Torres, Lidia, et al. "Energy decay in a granular gas collapse." New Journal of Physics 19 (2017).

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