Abstract

A modified model of turbulent shear flow of a suspension of small heavy particles in a fluid is presented. The modification is based on the assumption that in the flow there are two sorts of particles. For the particles of the first sort the velocity of free fall $a_1$ is larger than the characteristic velocity fluctuation, for the particles of the second sort the velocity of free fall $a_2$ is less than the characteristic velocity of fluctuation.

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Mathematical Subject Classification 2000

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