Shaping Segregation: Convexity vs. concavity

Sebastián Gonzalez Briones; Kit Windows-Yule; Stefan Luding; D.J. Parker; Anthony Richard Thornton

Shaping Segregation: Convexity vs. concavity

Sebastián Gonzalez Briones, Kit Windows-Yule, Stefan Luding, D.J. Parker, Anthony Richard Thornton

Faculty of Engineering Technology

Research output: Non-textual form › Web publication/site › Other research output

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Abstract

Controlling segregation is both a practical and a theoretical challenge. In this Letter we demonstrate a manner in which rotation-induced segregation may be controlled by altering the geometry of the rotating containers in which granular systems are housed. Using a novel drum design comprising concave and convex geometry, we explore a means by which radial size-segregation may be used to drive axial segregation, resulting in an order of magnitude increase in the axial segregation rate. This finding, and the explanations provided of its underlying mechanisms, could lead to radical new designs for a broad range of particle processing applications.

Original language	English
Publisher	Cornell University Library
Publication status	Published - 23 Oct 2014

Keywords

IR-99466
METIS-308306

Access to Document

http://arxiv.org/abs/1410.6286

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N2 - Controlling segregation is both a practical and a theoretical challenge. In this Letter we demonstrate a manner in which rotation-induced segregation may be controlled by altering the geometry of the rotating containers in which granular systems are housed. Using a novel drum design comprising concave and convex geometry, we explore a means by which radial size-segregation may be used to drive axial segregation, resulting in an order of magnitude increase in the axial segregation rate. This finding, and the explanations provided of its underlying mechanisms, could lead to radical new designs for a broad range of particle processing applications.

AB - Controlling segregation is both a practical and a theoretical challenge. In this Letter we demonstrate a manner in which rotation-induced segregation may be controlled by altering the geometry of the rotating containers in which granular systems are housed. Using a novel drum design comprising concave and convex geometry, we explore a means by which radial size-segregation may be used to drive axial segregation, resulting in an order of magnitude increase in the axial segregation rate. This finding, and the explanations provided of its underlying mechanisms, could lead to radical new designs for a broad range of particle processing applications.

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