Cluster dynamics in dense granular gases of rod-like particles
Keywords: 
Área Física y Ciencias del Espacio
Issue Date: 
2021
OpenAIRE: 
DLR is acknowledged for funding within projectsEquipage II (50WM1842) and EVA (50WM2048). R.C.Hidalgo acknowledges Projects No. FIS2017-84631-P,MINECO/AEI/FEDER, UE.
ISSN: 
2101-6275
Note: 
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
Citation: 
Puzyrev, D.; Cruz-Hidalgo, R. (Raúl); Fischer, D.; et al. "Cluster dynamics in dense granular gases of rod-like particles". The European Physical Journal Conferences. 249, 2021, 04004
Abstract
Granular gases are interesting multiparticle systems which, irrespective of the apparent simplicity of particle interactions, exhibit a rich scenario of so far only little understood features. We have numerically investigated a dense granular gas composed of frictional spherocylinders which are excited mechanically by lateral vibrating container walls. This study was stimulated by experiments in microgravity on parabolic flights. The formation of spatial inhomogeneities (clusters) was observed in a region near the corners of the container, about halfway from the excitation plates. The particles in the clusters show a tendency to align parallel to the container walls, seemingly increasing the stabilizing effect of friction. The simulation results provide hints that the phase difference of the vibrations of the two excitation walls might affect the cluster dynamics.

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