Three-dimensional intrinsic convection in dilute and dense dispersions of settling spheres
作者:
D. Bruneau,
F. Feuillebois,
J. Bławzdziewicz,
R. Anthore,
期刊:
Physics of Fluids
(AIP Available online 1998)
卷期:
Volume 10,
issue 1
页码: 55-59
ISSN:1070-6631
年代: 1998
DOI:10.1063/1.869549
出版商: AIP
数据来源: AIP
摘要:
The three-dimensional intrinsic convection in a monodisperse dispersion of spheres settling in a vertical container of arbitrary cross section is calculated using the simple model of point forces with excluded volume near the walls, proposed by Bruneau &etal; [Phys. Fluids8, 2236 (1996)]. An exact solution of the model equations for a container with rectangular cross-section shows that corners have no significant influence on the convection. A dense suspension is modeled by assuming an equilibrium particle distribution in the near wall region. It is predicted that as a result of near wall ordering, the intrinsic convection decreases with increasing particle volume fraction. ©1998 American Institute of Physics.
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