Collective Effects in Settling of Spheroids under Steady-State Sedimentation

E. Kuusela, J. M. Lahtinen, and T. Ala-Nissila

Phys. Rev. Lett. 90, 094502 – Published 5 March 2003; Erratum Phys. Rev. Lett. 90, 119901 (2003)

Abstract

We study the settling dynamics of non-Brownian prolate spheroids under steady-state sedimentation. We consider the case of moderate particle Reynolds numbers properly taking into account the hydrodynamic effects. For small volume fractions, we find an orientational transition of the spheroids, characterized by enhanced density fluctuations. Around the transition, the average settling velocity has a maximum which may even exceed the terminal velocity of a single spheroid, in accordance with experiments.

Received 8 March 2002
Publisher error corrected 7 March 2003

DOI:https://doi.org/10.1103/PhysRevLett.90.094502

Corrections

7 March 2003

Erratum

Publisher’s Note: Collective Effects in Settling of Spheroids under Steady-State Sedimentation [Phys. Rev. Lett.PRLTAO0031-9007 90, 094502 (2003)]

E. Kuusela, J. M. Lahtinen, and T. Ala-Nissila

Phys. Rev. Lett. 90, 119901 (2003)

Authors & Affiliations

E. Kuusela¹, J. M. Lahtinen¹, and T. Ala-Nissila^1,2

¹Helsinki Institute of Physics and Laboratory of Physics, Helsinki University of Technology, P.O. Box 1100, FIN-02015 HUT, Espoo, Finland
²Department of Physics, Brown University, Providence, Rhode Island 02912–1843

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Issue

Vol. 90, Iss. 9 — 7 March 2003

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