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Coarse graining for an impeller-driven mixer system

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Abstract

We apply a coarse graining approach developed by Isaac Goldhirsch to data acquired from a model of an impeller-driven mixer system. The experiment uses a bidisperse system of photoelastic particles in a quasi-2D system to determine local mass and momentum densities, velocities, granular temperatures, size concentration, and pressure. Raw data consist of high speed video images obtained with polarizers (to obtain particle-scale force data) and without polarizers (to obtain particle positions). We coarse grain the experimental data using a Gaussian coarse graining function, \({\phi}\) , of variable width, w.

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Authors and Affiliations

  1. Department of Physics, Duke University, Durham, NC, USA

    Abram H. Clark & Robert P. Behringer

  2. Procter & Gamble, Cincinnati, OH, USA

    Paul Mort

Authors
  1. Abram H. Clark
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  2. Paul Mort
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  3. Robert P. Behringer
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Correspondence to Robert P. Behringer.

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Clark, A.H., Mort, P. & Behringer, R.P. Coarse graining for an impeller-driven mixer system. Granular Matter 14, 283–288 (2012). https://doi.org/10.1007/s10035-011-0306-z

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  • DOI: https://doi.org/10.1007/s10035-011-0306-z

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