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Dynamic Behavior of an Intruder in a Granular Couette Flow

Published online by Cambridge University Press:  11 February 2011

Jian Liu  and
Anthony D. Rosato
Jian Liu
Affiliation:
Granular Science Laboratory, Mechanical Engineering Department, New Jersey Institute of Technology, Newark, NJ 07102
Anthony D. Rosato
Affiliation:
Granular Science Laboratory, Mechanical Engineering Department, New Jersey Institute of Technology, Newark, NJ 07102
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Abstract

This paper reports on three-dimensional, steady discrete element simulations of a single large spherical intruder in a gravity-free granular Couette flow of uniform particles with diameter d. The non-equilibrium nature of the flow is characterized by the depth profile of granular temperature, which decreases inwards toward the center. An intruder of size φ = D/d migrates away from the walls at a rate that increases with φ and wall velocity U. Computations indicated that the intruder's motion is induced by the high pressure near the wall.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 759: Symposium MM – Granular Material-Based Technologies , 2002 , MM3.4
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

1. Rosato, A. D., Strandburg, K. J., Prinz, F. P. et al., “Why the Brazil nuts are on top: size segregation of particulate matter by shaking,” Physical Review Letters 58, 1038–1041 (1997).Google Scholar
2. Mobius, Mathias, Nagel, Sidney R., and Jaeger, Heinrich M., “Size and density separation in granular materials,” Preprint, MRS Fall 2002 Meeting (2003).Google Scholar
3. Savage, S. B. and Lun, C. K. K., “Particle size segregation in inclined chute flow of dry cohesionless granular solids,” J. Fluid Mech. 189, 311–335 (1988).Google Scholar
4. Bridgwater, J., Cooke, M. H., and Scott, A. M., “Inter-particle percolation: equipment development and mean percolation velocities,” Transactions of the Institute of Chemical Engineers 56, 157–167 (1978).Google Scholar
5. Duran, J., Rajchenbach, J., and Clement, E., “Arching effect model for particle size segregation,” Physical Review Letters 70, 2431–2434 (1993).Google Scholar
6. Cundall, P. A.,, 1974.Google Scholar
7. Walton, O. R. and Braun, R. L., “Stress calculations for assemblies of inelastic spheres in uniform shear,” Acta Mechanica 63, 73 (1986).Google Scholar
8. Mindlin, R. D. and Deresiewicz, H., “Elastic spheres in contact under varying oblique forces,” J. Appl. Mech. 20, 327 (1953).Google Scholar
9. Walton, O. R., “Numerical simulation of inclined chute flows of monodisperse, inelastic, frictional spheres,” presented at the Second U.S.-Japan Seminar on Micromechanics of granular Materials, Potsdam, NY, 1991 (unpublished).Google Scholar
10. Savage, S. B. and Sayed, M., “Stresses developed by dry cohesionless granular materials sheared in an annular shear cell″,” J. Fluid Mech. 142 (8), 391 (1984).Google Scholar
11. Louge, M. Y., Jenkins, J. T., and Hopkins, M. A., “Computer simulations of rapid granular shear flows between parallel bumpy boundaries,” Physics of Fluids A 2 (6), 1042–1044 (1990).Google Scholar
12. Ogawa, S., “Multitemperature theory of granular materials,” presented at the U.S.-Japan Seminar on Continuum Mechanical and Statistical Approaches in the Mechanics of Granular Materials, Sendai, Japan, 1978 (unpublished).Google Scholar
13. Bagnold, R. A., “Experiments on a Gravity-Free Dispersion of large Solid Spheres in a Newtonian Fluid under Shear,” Proc. Roy. Soc. London A 225, 49 (1954).Google Scholar
14. Hunt, M. L., Zenit, R., Campbell, C. S. et al., “Revisiting the 1954 suspension experiments of R. A. Bagnold,” J. Fluid Mech. 452, 1–24 (2002).Google Scholar
15. Lun, Cliff K. K., “Granular dynamics of inelastic spheres in Couette flow,” Phys. fluids 8 (11), 2868–2883 (1996).Google Scholar