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arXiv · 1402.6765

Shear dispersion in dense granular flows

Ivan C. Christov·Howard A. Stone
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Abstract

We formulate and solve a model problem of dispersion of dense granular materials in rapid shear flow down an incline. The effective dispersivity of the depth-averaged concentration of the dispersing powder is shown to vary as the Péclet number squared, as in classical Taylor--Aris dispersion of molecular solutes. An extensions to generic shear profiles is presented, and possible applications to industrial and geological granular flows are noted.

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Ivan C. Christov, Howard A. Stone. 2014-02-27. Shear dispersion in dense granular flows. https://doi.org/10.1007/s10035-014-0498-0

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