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Dynamics of shear-induced migration of spherical particles in oscillatory pipe flow

Published online by Cambridge University Press:  30 November 2015

Braden Snook
Affiliation:
Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13453 Marseille, France
Jason E. Butler*
Affiliation:
Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
Élisabeth Guazzelli
Affiliation:
Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13453 Marseille, France
*
Email address for correspondence: butler@che.ufl.edu

Abstract

The large-amplitude oscillatory flow of a suspension of spherical particles in a pipe is studied at low Reynolds number. Particle volume fraction and velocity are examined through refractive index matching techniques. The particles migrate toward the centre of the pipe, i.e. toward regions of lower shear rate, for bulk volume fractions larger than 10 %. Steady results are in agreement with available experimental results and discrete-particle simulations for similar geometries. The dynamics of the shear-induced migration process are analysed and compared against the predictions of the suspension balance model using realistic rheological laws.

Type
Papers
Copyright
© 2015 Cambridge University Press 

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Snook et al. supplementary movie

Movie of the experimental images at a bulk volume fraction of 20%. All sequential images are shown for a given oscillation. Oscillations 1, 6, 11, 16, 21, 26, and 31 are shown.

Download Snook et al. supplementary movie(Video)
Video 7.2 MB

Snook et al. supplementary movie

Movie of the experimental images at a bulk volume fraction of 20%. All sequential images are shown for a given oscillation. Oscillations 1, 6, 11, 16, 21, 26, and 31 are shown.

Download Snook et al. supplementary movie(Video)
Video 5 MB
Supplementary material: File

Snook et al. supplementary data

Data sets

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File 60.5 KB

Snook et al. supplementary movie

Movie of the experimental images at a bulk volume fraction of 10%. The first image of oscillations 1 to 50 are shown sequentially to show the reversibility of the particles.

Download Snook et al. supplementary movie(Video)
Video 782.4 KB

Snook et al. supplementary movie

Movie of the experimental images at a bulk volume fraction of 10%. The first image of oscillations 1 to 50 are shown sequentially to show the reversibility of the particles.

Download Snook et al. supplementary movie(Video)
Video 1.4 MB

Snook et al. supplementary movie

Movie of the experimental images at a bulk volume fraction of 20%. The first image

Download Snook et al. supplementary movie(Video)
Video 1.2 MB

Snook et al. supplementary movie

Movie of the experimental images at a bulk volume fraction of 20%. The first image

Download Snook et al. supplementary movie(Video)
Video 934.8 KB