Computer simulations of rapid granular flows of spheres interacting with a flat, frictional boundary

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · Physics of Fluids; (United States)

DOI:https://doi.org/10.1063/1.868178· OSTI ID:7239171

Louge, M Y ^[1]

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1. Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853 (United States)

This paper employs computer simulations to test the theory of Jenkins [J. Applied Mech. [bold 59], 120 (1992)] for the interaction between a rapid granular flow of spheres and a flat, frictional wall. This paper examines the boundary conditions that relate the shear stress and energy flux at the wall to the normal stress, slip velocity, and fluctuation energy, and to the parameters that characterize a collision. It is found that while the theory captures the trends of the boundary conditions at low friction, it does not anticipate their behavior at large friction. A critical evaluation of Jenkins' assumptions suggests where his theory may be improved.

• DOE Contract Number: AC22-91PC90183
• OSTI ID: 7239171
• Journal Information: Physics of Fluids; (United States), Vol. 6:7; ISSN 1070-6631
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GRANULAR MATERIALS
FLOW STRESS
BOUNDARY LAYERS
COMPUTERIZED SIMULATION
FLOW MODELS
FRICTION
SPHERES
LAYERS
MATERIALS
MATHEMATICAL MODELS
SIMULATION
STRESSES
661300* - Other Aspects of Physical Science- (1992-)