Article (Scientific journals)
Compaction Dynamlics of Wet Granular Assemblies
Fiscina, J. E.; Lumay, Geoffroy; Ludewig, François et al.
2010In Physical Review Letters, 105, p. 048001
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Keywords :
Granular; Compaction; Humidity
Abstract :
[en] The extremely slow compaction dynamics of wet granular assemblies is studied experimentally. The cohesion, due to capillary bridges between neighboring grains, is tuned using different liquids having specific surface tension values. The compaction dynamics of a cohesive packing obeys an inverse logarithmic law, like most dry random packings. However, the characteristic relaxation time 􏰌 grows strongly with cohesion. A model, based on free volume kinetic equations and the presence of a capillary energy barrier, is able to reproduce quantitatively the experimental curves.
Disciplines :
Physics
Author, co-author :
Fiscina, J. E.
Lumay, Geoffroy ;  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 :
Compaction Dynamlics of Wet Granular Assemblies
Publication date :
July 2010
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society, Ridge, United States - New York
Volume :
105
Pages :
048001
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 August 2010

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