Theoretical estimates of air bubble behavior in dense pipeline slurry flows

In the paper an approach to simulation of air bubbles behavior in dense slurry flowing in a pipeline is explored. It is based on establishing a relationship between the flow dissipation energy rate and the collisional dynamics of solid particles. This problem is important in hydrotransport technolog...

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Bibliographic Details
Published inChemical engineering and processing Vol. 43; no. 6; pp. 727 - 737
Main Authors Eskin, D, Leonenko, Y, Vinogradov, O
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 01.06.2004
Elsevier
Subjects
Applied sciences
Break-up
Bubbles
Chemical engineering
Coalescence
Exact sciences and technology
Hydrodynamics of contact apparatus
Modeling
Slurries
Bubbles
Coalescence
Break-up
Modeling
Slurries
Bubble
Turbulence
Multiphase flow
Energy dissipation
Solid particle
Particle suspension
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Summary:In the paper an approach to simulation of air bubbles behavior in dense slurry flowing in a pipeline is explored. It is based on establishing a relationship between the flow dissipation energy rate and the collisional dynamics of solid particles. This problem is important in hydrotransport technology of bitumen extraction from the oil sands. The dynamics of air bubbles distributed in slurry is investigated based on two models: a model of turbulence and a model describing particles collisional motion. The rate of air bubbles break-up as well as that of coalescence are estimated. The main parameters governing the bubbles break-up and coalescence are discussed.
ISSN:0255-2701
1873-3204
DOI:10.1016/S0255-2701(03)00016-3