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Particle suspension in a simple shear flow

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Abstract

A hydrodynamic model describing the particle distribution over the cross-section of a finely dispersed flow is proposed. The model is constructed on the basis of notions concerning the diffusion of particles induced by their random displacements in the process of relative motion of neighboring layers at constant shear velocity. It is shown that the suspension capacity of the flow is large for small particles due to thermal fluctuations and for relatively large particles due to shear-induced particle pulsations. There are critical particle sizes for which the particles are suspended and transported by the flow less effectively than larger or smaller particles.

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Authors
  1. Yu. A. Buevich
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  2. A. V. Makarov
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Additional information

Ekaterinburg. Translated from Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, No. 1, pp. 112–121, January–February, 1995.

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Buevich, Y.A., Makarov, A.V. Particle suspension in a simple shear flow. Fluid Dyn 30, 93–100 (1995). https://doi.org/10.1007/BF02029932

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  • DOI: https://doi.org/10.1007/BF02029932

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