| Mesoscopic length scale controls the rheology of dense suspensions. | |
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MedLine Citation:
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PMID: 20867554 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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From the flow properties of dense granular suspensions on an inclined plane, we identify a mesoscopic length scale strongly increasing with volume fraction. When the flowing layer height is larger than this length scale, a diverging Newtonian viscosity is determined. However, when the flowing layer height drops below this scale, we evidence a nonlocal effective viscosity, decreasing as a power law of the flow height. We establish a scaling relation between this mesoscopic length scale and the suspension viscosity. These results support recent theoretical and numerical results implying collective and clustered granular motion when the jamming point is approached from below. |
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Authors:
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Claire Bonnoit; Jose Lanuza; Anke Lindner; Eric Clement |
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Publication Detail:
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Type: Journal Article Date: 2010-09-03 |
Journal Detail:
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Title: Physical review letters Volume: 105 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-09-27 Completed Date: 2011-01-12 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 108302 Citation Subset: - |
Affiliation:
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PMMH, ESPCI, CNRS (UMR 7636) and Université Paris 6 and Paris 7, 10 rue Vauquelin, 75005 Paris, France. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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