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Channel Flow of a Mixture of Granular Materials and a Fluid

[+] Author Affiliations
Wei-Tao Wu

Carnegie Mellon University, Pittsburgh, PA

Nadine Aubry

Northeastern University, Boston, MA

Mehrdad Massoudi

U. S. Department of Energy, National Energy Technology Laboratory, Pittsburgh, PA

Paper No. IMECE2013-65385, pp. V07AT08A033; 6 pages
doi:10.1115/IMECE2013-65385
From:
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 7A: Fluids Engineering Systems and Technologies
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5631-4
  • Copyright © 2013 by ASME

abstract

In this paper, we consider the three dimensional flow of granular materials and a viscous fluid in a channel. We use Mixture Theory to treat this problem as a two-component system [1]: One component is the solid particles (granular materials), such as sand, coal particles or red blood cells; the solid particles are modeled as a generalized Reiner-Rivlin type fluid derived by Massoudi [2], which not only considers the effects of volume fraction but also has a viscosity which is shear rate dependent. The other component, the host fluid, is assumed to behave as a linear viscous fluid, such as water, oil or plasma. For the interaction forces, the effect of different hindrance functions for the drag force is studied; moreover a generalized form of the expression for the hindrance function is suggested. For studying this two-component system numerically, a three dimensional CFD solver based on OpenFOAM® has been developed. Applying this solver, a specific problem (blood flow) has been studied for which our numerical results and experimental data [3] show good agreement.

Copyright © 2013 by ASME

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