Energy decay in a granular gas collapse

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Almazán Torres L, Serero D, Salueña C, Pöschel T
Zeitschrift: New Journal of Physics
Jahr der Veröffentlichung: 2017
Band: 19
ISSN: 1367-2630
Sprache: Englisch


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.



FAU-Autoren / FAU-Herausgeber

Almazán Torres, Lidia Dr.-Ing.
Lehrstuhl für Multiscale Simulation of Particulate Systems
Pöschel, Thorsten Prof. Dr.
Lehrstuhl für Multiscale Simulation of Particulate Systems
Serero, Dan
Lehrstuhl für Multiscale Simulation of Particulate Systems


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Autor(en) der externen Einrichtung(en)
Universitat Rovira i Virgili (URV)


Zitierweisen

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

BibTeX: 

Zuletzt aktualisiert 2018-08-08 um 18:40