Modeling of turbulent structure of an upward polydisperse gas-liquid flow

Calculations of the structure of an upward polydisperse gas-liquid pipe flow are presented. The model is based on the Eulerian approach with account of the feedback effect of the bubbles on the average parameters and turbulence of the carrier phase. The turbulent kinetic energy of the fluid is calcu...

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Bibliographic Details
Published in:Fluid dynamics 2015-03, Vol.50 (2), p.229-239
Main Authors: Pakhomov, M. A., Terekhov, V. I.
Format: Article
Language:English
Subjects:
Bubbles
Classical and Continuum Physics
Classical Mechanics
Coalescing
Computational fluid dynamics
Engineering Fluid Dynamics
Fluid flow
Fluid- and Aerodynamics
Kinetic energy
Mathematical models
Physics
Physics and Astronomy
Turbulence
Turbulent flow
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Summary:Calculations of the structure of an upward polydisperse gas-liquid pipe flow are presented. The model is based on the Eulerian approach with account of the feedback effect of the bubbles on the average parameters and turbulence of the carrier phase. The turbulent kinetic energy of the fluid is calculated using the transport equations for the Reynolds stresses. The bubble dynamics are described with account for the variation of the mean bubble volume due to the coalescence and break-up of the bubbles. The comparison of the results with experimental data shows that the approach developedmakes it possible to describe adequately turbulent gas-liquid flows over a wide range of variation of the gas volume fraction and the initial bubble size.
ISSN:0015-4628
1573-8507
DOI:10.1134/S0015462815020076