Sedimentation of homogeneous suspensions of non-Brownian spheres

Journal Article · Sat Mar 01 04:00:00 EST 1997 · Physics of Fluids (1994)

DOI:https://doi.org/10.1063/1.869212· OSTI ID:450300

Ladd, A J ^[1]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

Dynamical simulations of bulk sedimentation have been carried out, using up to 32000 solid particles. There is no evidence that the long-range hydrodynamic interactions are screened by changes in the pair correlation function at large distances. Instead the velocity fluctuations and diffusion coefficients diverge linearly with the width of the container, consistent with the random long-range microstructures observed in the simulations. Our data suggest that other mechanisms must be uncovered to account for experimental observations. {copyright} {ital 1997 American Institute of Physics.}

• Research Organization: Lawrence Livermore National Laboratory
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 450300
• Journal Information: Physics of Fluids (1994), Journal Name: Physics of Fluids (1994) Journal Issue: 3 Vol. 9; ISSN PHFLE6; ISSN 1070-6631
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CORRELATION FUNCTIONS
DIFFUSION
FLUCTUATIONS
SEDIMENTATION
SIMULATION
SUSPENSIONS
VELOCITY