Article (Scientific journals)
Dynamical clustering in driven granular gas
Opsomer, Eric; Ludewig, François; Vandewalle, Nicolas
2012In Europhysics Letters, 99
Peer Reviewed verified by ORBi
 

Files


Full Text
0295-5075_99_4_40001.pdf
Publisher postprint (1.66 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
granular gas; microgravity; numerical simulations
Abstract :
[en] Driven granular gases present rich dynamical behaviors. Due to inelastic collisions, particles may form dense and slow regions. These clusters emerge naturally during a cooling phenomenon but another dynamical clustering is observed when the system is continuously excited. In this paper, the physical processes that trigger the transition from a granular gas to a dynamical cluster are evidenced through numerical simulations. At the granular scale, the transition is evidenced by the observation of caging effects. At the scale of the system, the transition is emphasized by density fluctuations. Physical arguments, based on relaxation times, provide an analytical prediction for the edge between dynamical regimes.
Disciplines :
Physics
Author, co-author :
Opsomer, Eric  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Ludewig, François ;  Université de Liège - ULiège > Département de physique > Physique statistique
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Language :
English
Title :
Dynamical clustering in driven granular gas
Publication date :
20 August 2012
Journal title :
Europhysics Letters
ISSN :
0295-5075
eISSN :
1286-4854
Publisher :
EDP Sciences, Les Ulis, France
Volume :
99
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 August 2012

Statistics


Number of views
98 (7 by ULiège)
Number of downloads
3 (3 by ULiège)

Scopus citations®
 
29
Scopus citations®
without self-citations
16
OpenCitations
 
28

Bibliography


Similar publications



Contact ORBi