Matson WR, Kalyankar M, Ackerson BJ, Tong P. Concentration and velocity patterns in a horizontal rotating suspension of non-Brownian settling particles.
Phys Rev E 2005;
71:031401. [PMID:
15903425 DOI:
10.1103/physreve.71.031401]
[Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2004] [Indexed: 11/07/2022]
Abstract
We report a systematic experimental study of concentration and velocity patterns formed in a horizontal rotating cylinder filled completely with a monodisperse suspension of non-Brownian settling particles. The system shows a series of concentration and velocity patterns, or phases, with varying rotation rate and solvent viscosity. Individual phases are studied using both side and cross-sectional imaging to examine the detailed flow structures. The overall phase diagram of the system is mapped out as a function of the rotation rate and solvent viscosity. Attempts are made to analyze the functional form of the phase boundaries in order to understand the transition mechanism between different phases.
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