Hydrodynamic interactions in concentrated suspensions

X. Qiu; X. L. Wu; J. Z. Xue; D. J. Pine; D. A. Weitz; P. M. Chaikin

doi:10.1103/PhysRevLett.65.516

Hydrodynamic interactions in concentrated suspensions

X. Qiu, X. L. Wu, J. Z. Xue, D. J. Pine, D. A. Weitz, P. M. Chaikin

Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We study the effects of hydrodynamic interactions on the diffusion of hard spheres in concentrated suspensions. Using a multiple-light-scattering technique that measures the early-time behavior, we find Deff/D0=1-(1.86±0.07), where is the volume fraction of spheres, Deff is the effective diffusion coefficient, and D0 is the free-particle diffusion coefficient. This agrees with the linear term calculated theoretically for short-time self-diffusion. The short-time diffusion coefficient is also found to be continuous across the freezing transition.

Original language	English (US)
Pages (from-to)	516-519
Number of pages	4
Journal	Physical Review Letters
Volume	65
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.65.516
State	Published - 1990

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.65.516

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title = "Hydrodynamic interactions in concentrated suspensions",

abstract = "We study the effects of hydrodynamic interactions on the diffusion of hard spheres in concentrated suspensions. Using a multiple-light-scattering technique that measures the early-time behavior, we find Deff/D0=1-(1.86±0.07), where is the volume fraction of spheres, Deff is the effective diffusion coefficient, and D0 is the free-particle diffusion coefficient. This agrees with the linear term calculated theoretically for short-time self-diffusion. The short-time diffusion coefficient is also found to be continuous across the freezing transition.",

author = "X. Qiu and Wu, {X. L.} and Xue, {J. Z.} and Pine, {D. J.} and Weitz, {D. A.} and Chaikin, {P. M.}",

year = "1990",

doi = "10.1103/PhysRevLett.65.516",

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journal = "Physical Review Letters",

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AU - Wu, X. L.

AU - Xue, J. Z.

AU - Pine, D. J.

AU - Weitz, D. A.

AU - Chaikin, P. M.

PY - 1990

Y1 - 1990

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AB - We study the effects of hydrodynamic interactions on the diffusion of hard spheres in concentrated suspensions. Using a multiple-light-scattering technique that measures the early-time behavior, we find Deff/D0=1-(1.86±0.07), where is the volume fraction of spheres, Deff is the effective diffusion coefficient, and D0 is the free-particle diffusion coefficient. This agrees with the linear term calculated theoretically for short-time self-diffusion. The short-time diffusion coefficient is also found to be continuous across the freezing transition.

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Hydrodynamic interactions in concentrated suspensions

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