Document Detail


Dense Granular Flow around a Penetrating Object: Experiment and Hydrodynamic Model.
MedLine Citation:
PMID:  21867044     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We present in this Letter experimental results on the bidimensional flow field around a cylinder penetrating into dense granular matter, together with drag force measurements. A hydrodynamic model based on extended kinetic theory for dense granular flow reproduces well the flow localization close to the cylinder and the corresponding scalings of the drag force, which is found to not depend on velocity, but linearly on the pressure and on the cylinder diameter and weakly on the grain size. Such a regime is found to be valid at a low enough "granular" Reynolds number.
Authors:
A Seguin; Y Bertho; P Gondret; J Crassous
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Publication Detail:
Type:  Journal Article     Date:  2011-07-20
Journal Detail:
Title:  Physical review letters     Volume:  107     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-08-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  048001     Citation Subset:  IM    
Affiliation:
Univ Paris-Sud, Univ Paris 6, CNRS, Lab FAST, Bâtiment 502, Campus Univ, F-91405 Orsay, France.
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