Effect of base dissipation on the granular flow down an inclined plane

Maheshwari, S and Kumaran, V (2012) Effect of base dissipation on the granular flow down an inclined plane. In: Granular Matter, 14 (2, SI). pp. 209-213.

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Abstract

The effect of base dissipation on the granular flow down an inclined plane is examined by altering the coefficient of restitution between the moving and base particles in discrete element (DE) simulations. The interaction laws between two moving particles are kept fixed, and the coefficient of restitution (damping constant in the DE simulations) between the base and moving particles are altered to reduce dissipation, and inject energy from the base. The energy injection does result in an increase in the strain rate by up to an order of magnitude, and the temperature by up to two orders of magnitude at the base. However, the volume fraction, strain rate and temperature profiles in the bulk (above about 15 particle diameters from the base) are altered very little by the energy injection at the base. We also examine the variation of h(stop), the minimum height at the cessation of flow, with energy injection from the base. It is found that at a fixed angle of inclination, h(stop) decreases as the energy dissipation at the base decreases.

Item Type:	Journal Article
Publication:	Granular Matter
Publisher:	Springer
Additional Information:	Copyright of this article is belongs to Springer.
Keywords:	Dense granular flow;Inclined plane
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	23 Jul 2012 11:54
Last Modified:	23 Jul 2012 11:54
URI:	http://eprints.iisc.ac.in/id/eprint/44631

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