The modelling of buoyancy driven flow in bubble columns

G.M. Cartland Glover; S.C. Generalis

doi:10.1016/S0255-2701(03)00008-4

The modelling of buoyancy driven flow in bubble columns

G.M. Cartland Glover, S.C. Generalis^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Using the analogy between lateral convection of heat and the two-phase flow in bubble columns, alternative turbulence modelling methods were analysed. The k-ε turbulence and Reynolds stress models were used to predict the buoyant motion of fluids where a density difference arises due to the introduction of heat or a discrete phase. A large height to width aspect ratio cavity was employed in the transport of heat and it was shown that the Reynolds stress model with the use of velocity profiles including the laminar flow solution resulted in turbulent vortices developing. The turbulence models were then applied to the simulation of gas-liquid flow for a 5:1 height to width aspect ratio bubble column. In the case of a gas superficial velocity of 0.02 m s^-1 it was determined that employing the Reynolds stress model yielded the most realistic simulation results. © 2003 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	101-115
Number of pages	15
Journal	Chemical Engineering and Processing
Volume	43
Issue number	2
DOIs	https://doi.org/10.1016/S0255-2701(03)00008-4
Publication status	Published - Feb 2004

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Chemical Engineering and Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Generalis, Sotos C. and Cartland Glover, Gregory (2004). The modelling of buoyancy driven flow in bubble columns. Chemical Engineering and Processing, 43 (2), pp. 101-115. DOI 10.1016/S0255-2701(03)00008-4

Keywords

bubble columns
computational fluid dynamics
k-ε Turbulence
mixture models
thermal convection
turbulent Reynolds stresses
two-phase flow

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10.1016/S0255-2701(03)00008-4

Modelling of buoyancy driven flow in bubble columns.pdf
NOTICE: this is the author’s version of a work that was accepted for publication in Chemical Engineering and Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Generalis, Sotos C. and Cartland Glover, Gregory (2004). The modelling of buoyancy driven flow in bubble columns. Chemical Engineering and Processing, 43 (2), pp. 101-115. DOI 10.1016/S0255-2701(03)00008-4

Cite this

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title = "The modelling of buoyancy driven flow in bubble columns",

abstract = "Using the analogy between lateral convection of heat and the two-phase flow in bubble columns, alternative turbulence modelling methods were analysed. The k-ε turbulence and Reynolds stress models were used to predict the buoyant motion of fluids where a density difference arises due to the introduction of heat or a discrete phase. A large height to width aspect ratio cavity was employed in the transport of heat and it was shown that the Reynolds stress model with the use of velocity profiles including the laminar flow solution resulted in turbulent vortices developing. The turbulence models were then applied to the simulation of gas-liquid flow for a 5:1 height to width aspect ratio bubble column. In the case of a gas superficial velocity of 0.02 m s-1 it was determined that employing the Reynolds stress model yielded the most realistic simulation results. {\textcopyright} 2003 Elsevier B.V. All rights reserved.",

keywords = "bubble columns, computational fluid dynamics, k-ε Turbulence, mixture models, thermal convection, turbulent Reynolds stresses, two-phase flow",

author = "{Cartland Glover}, G.M. and S.C. Generalis",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Chemical Engineering and Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Generalis, Sotos C. and Cartland Glover, Gregory (2004). The modelling of buoyancy driven flow in bubble columns. Chemical Engineering and Processing, 43 (2), pp. 101-115. DOI 10.1016/S0255-2701(03)00008-4",

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doi = "10.1016/S0255-2701(03)00008-4",

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AU - Cartland Glover, G.M.

AU - Generalis, S.C.

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Chemical Engineering and Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Generalis, Sotos C. and Cartland Glover, Gregory (2004). The modelling of buoyancy driven flow in bubble columns. Chemical Engineering and Processing, 43 (2), pp. 101-115. DOI 10.1016/S0255-2701(03)00008-4

PY - 2004/2

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N2 - Using the analogy between lateral convection of heat and the two-phase flow in bubble columns, alternative turbulence modelling methods were analysed. The k-ε turbulence and Reynolds stress models were used to predict the buoyant motion of fluids where a density difference arises due to the introduction of heat or a discrete phase. A large height to width aspect ratio cavity was employed in the transport of heat and it was shown that the Reynolds stress model with the use of velocity profiles including the laminar flow solution resulted in turbulent vortices developing. The turbulence models were then applied to the simulation of gas-liquid flow for a 5:1 height to width aspect ratio bubble column. In the case of a gas superficial velocity of 0.02 m s-1 it was determined that employing the Reynolds stress model yielded the most realistic simulation results. © 2003 Elsevier B.V. All rights reserved.

AB - Using the analogy between lateral convection of heat and the two-phase flow in bubble columns, alternative turbulence modelling methods were analysed. The k-ε turbulence and Reynolds stress models were used to predict the buoyant motion of fluids where a density difference arises due to the introduction of heat or a discrete phase. A large height to width aspect ratio cavity was employed in the transport of heat and it was shown that the Reynolds stress model with the use of velocity profiles including the laminar flow solution resulted in turbulent vortices developing. The turbulence models were then applied to the simulation of gas-liquid flow for a 5:1 height to width aspect ratio bubble column. In the case of a gas superficial velocity of 0.02 m s-1 it was determined that employing the Reynolds stress model yielded the most realistic simulation results. © 2003 Elsevier B.V. All rights reserved.

KW - bubble columns

KW - computational fluid dynamics

KW - k-ε Turbulence

KW - mixture models

KW - thermal convection

KW - turbulent Reynolds stresses

KW - two-phase flow

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U2 - 10.1016/S0255-2701(03)00008-4

DO - 10.1016/S0255-2701(03)00008-4

M3 - Article

SN - 0255-2701

VL - 43

SP - 101

EP - 115

JO - Chemical Engineering and Processing

JF - Chemical Engineering and Processing

IS - 2

ER -

The modelling of buoyancy driven flow in bubble columns

Abstract

Bibliographical note

Keywords

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Use of computational fluid dynamics in the design of bubble column reactors

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The modelling of buoyancy driven flow in bubble columns

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Student theses

Use of computational fluid dynamics in the design of bubble column reactors

Cite this