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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 68, 2015 - Issue 11
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Original Articles

Numerical Study of Bubbly Flow Using the Second-Order Moment Turbulence Model and the Population Balance Method

K. LiInstitute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, ChinaCorrespondence[email protected] [email protected]
,
M. XiangInstitute of Aerospace and Material Engineering, National University of Defense Technology, Changsha, China
,
G. H. YeohSchool of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, Australia
,
L. X. ZhouDepartment of Engineering Mechanics, Tsinghua University, Beijing, China
,
J. Y. TuSchool of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Melbourne, Australia
&
H. G. WangInstitute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, China
Pages 1220-1241 | Received 20 Nov 2014, Accepted 07 Mar 2015, Published online: 23 Jun 2015
 
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Abstract

A comprehensive computational fluid dynamics (CFD) turbulence model, coupled with a population balance method (PBM), is presented to simulate the two-phase gas–liquid bubbly flow. The simulation results are in good agreement with the experimental data. Furthermore, considering the bubble size distribution including the drag force and lift force, the results showed that the calculated results are in good agreement with the experimental measurements. The studies reveal the liquid recirculation and bubble uprising flow patterns, and anisotropic liquid and bubble normal Reynolds stresses. Moreover, both the liquid velocity gradient and the bubble–liquid interaction are important for the generation of liquid turbulence.

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