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Modeling of high-concentration gas-particle flow in a horizontal channel

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Abstract

A model of the motion of an admixture of polydisperse solid particles in a horizontal plane channel with account for particle deposition on the bottom wall is presented. The dispersed phase, consisting of six particle fractions characterized by the particle size and the mass concentration, is modeled in Eulerian form. Interparticle collisions occur due to the difference in the velocities of average motion of the fractions and to particle velocity fluctuations. It is important to take interparticle collisions into account for flows with a high particle mass loading (in the model, up to 50 kg per kg of gas) and because of the gravity-induced particle accumulation on the bottom wall. To ensure a correct description of the particle-wall collisions, impinging and rebounding particle streams with the corresponding restitution coefficients for the normal and tangential particle velocities and friction are introduced. The calculations are compared with experiments [1].

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Authors
  1. A. I. Kartushinskii
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  2. E. E. Michaelides
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  3. Yu. A. Rudi
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Additional information

__________

Translated from Izvestiya Rossiiskoi Academii Nauk, Mekhanika Zhidkosti i Gaza, No. 2, 2006, pp. 76–87.

Original Russian Text Copyright © 2006 by Kartushinskii, Michaelides, and Rudi.

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Kartushinskii, A.I., Michaelides, E.E. & Rudi, Y.A. Modeling of high-concentration gas-particle flow in a horizontal channel. Fluid Dyn 41, 237–248 (2006). https://doi.org/10.1007/s10697-006-0037-8

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  • DOI: https://doi.org/10.1007/s10697-006-0037-8

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