Three-dimensional intrinsic convection in dilute and dense dispersions of settling spheres
نویسندگان
چکیده
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 et al. @Phys. Fluids 8, 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. @S1070-6631~98!01001-0#
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