Shear dispersion in dense granular flows

Christov, Ivan C.; Stone, Howard A.

doi:10.1007/s10035-014-0498-0

Title: Shear dispersion in dense granular flows

Journal Article · Fri Apr 18 00:00:00 EDT 2014 · Granular Matter

DOI:https://doi.org/10.1007/s10035-014-0498-0· OSTI ID:1214824

Christov, Ivan C. ^[1]; Stone, Howard A. ^[2]

Princeton Univ., NJ (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Princeton Univ., NJ (United States)

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 extension to generic shear profiles is presented, and possible applications to industrial and geological granular flows are noted.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1214824

Report Number(s):: LA-UR-14-20273; PII: 498

Journal Information:: Granular Matter, Vol. 16, Issue 4; ISSN 1434-5021

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 18 works

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42 ENGINEERING
97 MATHEMATICS AND COMPUTING
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