We experimentally study the detachment of drops of granular suspensions using a density matched model suspension with varying grain volume fraction (ϕ = 15% to 55%) and grain diameter (d = 20 μm to 140 μm). We show that at the beginning of the detachment process, the suspensions behave as an effective fluid. The detachment dynamics in this regime can be entirely described by the shear viscosity of the suspension [R. J. Furbank and J. F. Morris, Int. J. Multiphase Flow 33(
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April 2012
Research Article|
April 27 2012
Accelerated drop detachment in granular suspensions
Claire Bonnoit;
Claire Bonnoit
a)
Physique et Mécanique des Milieux Hétérogènes (PMMH), UMR 7636 CNRS, ESPCI, UPMC,
Université Paris Diderot
, 10, rue Vauquelin, 75231 Paris Cedex 05, France
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Thibault Bertrand;
Thibault Bertrand
Physique et Mécanique des Milieux Hétérogènes (PMMH), UMR 7636 CNRS, ESPCI, UPMC,
Université Paris Diderot
, 10, rue Vauquelin, 75231 Paris Cedex 05, France
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Eric Clément;
Eric Clément
Physique et Mécanique des Milieux Hétérogènes (PMMH), UMR 7636 CNRS, ESPCI, UPMC,
Université Paris Diderot
, 10, rue Vauquelin, 75231 Paris Cedex 05, France
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Anke Lindner
Anke Lindner
Physique et Mécanique des Milieux Hétérogènes (PMMH), UMR 7636 CNRS, ESPCI, UPMC,
Université Paris Diderot
, 10, rue Vauquelin, 75231 Paris Cedex 05, France
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a)
C. Bonnoit and T. Bertrand contributed equally to this work.
b)
Electronic mail: thibault.bertrand@yale.edu.
Physics of Fluids 24, 043304 (2012)
Article history
Received:
August 03 2011
Accepted:
March 05 2012
Citation
Claire Bonnoit, Thibault Bertrand, Eric Clément, Anke Lindner; Accelerated drop detachment in granular suspensions. Physics of Fluids 1 April 2012; 24 (4): 043304. https://doi.org/10.1063/1.4704801
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