Anomalous hydrodynamic interaction in a quasi-two-dimensional suspension

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dc.creatorCui, Bianxiao
dc.creatorDiamant, Haim
dc.creatorLin, Binhua
dc.creatorRice, Stuart A.
dc.date2003-12-11
dc.date2004-06-22
dc.date.accessioned2026-07-07T06:34:18Z
dc.date.available2026-07-07T06:34:18Z
dc.descriptionWe have studied the correlated Brownian motion of micron-sized particles suspended in water and confined between two plates. The hydrodynamic interaction between the particles exhibits three anomalies. (i) The transverse coupling is negative, i.e., particles exert "anti-drag" on one another when moving perpendicular to their connecting line. (ii) The interaction decays with inter-particle distance r as 1/r^2, faster than in unconfined suspensions but slower than near a single wall. (iii) At large distances the pair interaction is independent of concentration within the experimental accuracy. The confined suspension thus provides an unusual example of long-range, yet essentially pairwise correlations even at high concentration. These effects are shown to arise from the two-dimensional dipolar form of the flow induced by single-particle motion.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0312298
dc.identifierhttp://arxiv.org/abs/cond-mat/0312298
dc.identifierPhys. Rev. Lett. 92, 258301 (2004)
dc.identifierdoi:10.1103/PhysRevLett.92.258301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/99484
dc.subjectSoft Condensed Matter
dc.subjectChemical Physics
dc.titleAnomalous hydrodynamic interaction in a quasi-two-dimensional suspension
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