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Issue 29, 2016
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Field driven charging dynamics of a fluidized granular bed

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Abstract

A simplified model has previously described the inductive charging of colliding identical grains in the presence of an external electric field. Here we extend that model by including heterogeneous surface charge distributions, grain rotations and electrostatic interactions between grains. We find from this more realistic model that strong heterogeneities in charging can occur in agitated granular beds, and we predict that shielding due to these heterogeneities can dramatically alter the charging rate in such beds.

Graphical abstract: Field driven charging dynamics of a fluidized granular bed

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Article information


Submitted
11 Feb 2016
Accepted
20 Jun 2016
First published
20 Jun 2016

Soft Matter, 2016,12, 6261-6267
Article type
Paper

Field driven charging dynamics of a fluidized granular bed

R. Yoshimatsu, N. A. M. Araújo, T. Shinbrot and H. J. Herrmann, Soft Matter, 2016, 12, 6261
DOI: 10.1039/C6SM00357E

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