Dense, rapid flows of inelastic grains under gravity

The standard hydrodynamic description does not apply to the rapid flow regime of inelastic grains in the dense limit. Emphasizing the role of inelastic loss and collapse, we propose a new approach relying on a nonlocal dissipation scheme. Our model succeeds in accounting qualitatively and quantitati...

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Bibliographic Details
Published in:Physical review letters 2003-04, Vol.90 (14), p.144302-144302, Article 144302
Main Author: Rajchenbach, Jean
Format: Article
Language:English
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Summary:The standard hydrodynamic description does not apply to the rapid flow regime of inelastic grains in the dense limit. Emphasizing the role of inelastic loss and collapse, we propose a new approach relying on a nonlocal dissipation scheme. Our model succeeds in accounting qualitatively and quantitatively for the linear profile of velocity found in experiments on dense gravity-driven flows.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.90.144302