Experimental investigation and kinetic-theory-based model of a rapid granular shear flow
نویسندگان
چکیده
منابع مشابه
Kinetic Theory and Hydrodynamics for Rapid Granular Flow - A Perspective
These are notes prepared for presentation at the workshop ”Challenges in Granular Matter” at the Abdus Salam Institute for Theoretical Physics, Trieste, August 2001. Revisions and figures will be added at a later date. Many features of real granular fluids under rapid flow are replicated by a system of smooth hard spheres with inelastic collisions. For such a system, it is tempting to apply sta...
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We analyze the main features of granular shear flow through experimental measurements in a Couette geometry and a comparison to a locally Newtonian, continuum model of granular flow. The model is based on earlier hydrodynamic models, adjusted to take into account the experimentally observed coupling between fluctuations in particle motion and mean-flow properties. Experimentally, the local velo...
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Abstract. We discuss the advantages and results of using a mixing-length, compressible model to account for shear banding behaviour in granular flow. We formulate a general approach based on two function of the solid fraction to be determined. Studying the vertical chute flow, we show that shear band thickness is always independent from flowrate in the quasistatic limit, for Coulomb wall bounda...
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2008
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112008000700