Gravitational settling of a highly concentrated system of solid spherical particles
V.A. Arkhipov and A.S. Usanina
Tomsk State University, Tomsk, Russia
E-mail: Usaninaanna@mail.ru
Keywords: solid spherical particle, highly concentrated system of particles, gravity sedimenta-tion, settling regime, drag coefficient
Pages: 719–730
Abstract
In the present paper, we
report on the results of an experimental study of the process of gravity
sedimentation of a cloud of monodispersed solid spherical particles with
initial volume concentration C >
0.03, which was performed in a wide range of Reynolds numbers. An
analytical estimate of the settling regimes of spherical particle clouds is presented.
A new method for creating a spherical particle cloud with a high concentration
of particles is proposed. A qualitative picture of the settling process of
a highly concentrated particle cloud under gravity is revealed. A criterial
dependence for the drag coefficient of a sedimenting spherical particle cloud
as an entity is obtained.
DOI: 10.1134/S0869864317050079
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