Journal ArticleDOI
Dynamics of gas-liquid flow in a rectangular bubble column: Experiments and single/multi-group CFD simulations
Vivek V. Buwa,Vivek V. Ranade +1 more
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TLDR
In this paper, the effect of gas velocity, sparger design and coalescence suppressing additives on dynamics of gas-liquid flow in a rectangular bubble column was investigated using high-speed digital camera measurements.About:
This article is published in Chemical Engineering Science.The article was published on 2002-11-11. It has received 259 citations till now. The article focuses on the topics: Bubble & Two-phase flow.read more
Citations
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Journal ArticleDOI
Bubble column reactors
TL;DR: In this article, the authors present a review of bubble columns and their application, description, design and operation, application areas, fluid dynamics and regime analysis encountered and parameters characterizing the operation.
Journal ArticleDOI
CFD simulation of bubble column—An analysis of interphase forces and turbulence models
TL;DR: In this paper, a laboratory scale bubble column with three different spargers (perforated plate, sintered plate and single hole) has been simulated using three different turbulence closure (k-ɛ, RSM and LES) models, with the purpose of critically comparing their predictions with experimental data.
Journal ArticleDOI
Application of the direct quadrature method of moments to polydisperse gas–solid fluidized beds
TL;DR: In this article, the direct quadrature method of moments (DQMOM) is implemented in a multi-fluid CFD code to simulate particle aggregation and breakage in a fluidized-bed (FB) reactor.
Journal ArticleDOI
Modeling of Bubble Column Reactors: Progress and Limitations
TL;DR: In this article, the progress reported in the literature during the past decade regarding the use of averaged Eulerian multifluid models and computational fluid dynamics (CFD) to model vertical bubble-driven flows is reviewed.
Journal ArticleDOI
Gas–liquid flow generated by a Rushton turbine in stirred vessel: CARPT/CT measurements and CFD simulations
TL;DR: In this paper, computer-automated radioactive particle tracking (CARPT), computed tomography (CT) and computational fluid dynamic (CFD) based models were used to investigate gas-liquid flow generated by a Rushton turbine.
References
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Journal ArticleDOI
Fundamentals of the hydrodynamic mechanism of splitting in dispersion processes
TL;DR: In this paper, Taylor's experiments on the breakup of a drop in simple types of viscous flow, (b) breakup of an air stream, and (c) emulsification in a turbulent flow are studied.
Journal ArticleDOI
Drag coefficient and relative velocity in bubbly, droplet or particulate flows
Mamoru Ishii,Novak Zuber +1 more
TL;DR: In this article, the relative motion correlations for dispersed two-phase flows of bubbles, drops, and particles were developed from simple similarity criteria and a mixture viscosity model, and satisfactory agreements were obtained at wide ranges of the particle concentration and Reynolds number.
Journal ArticleDOI
Bubble coalescence and break‐up in air‐sparged bubble columns
TL;DR: In this article, a Phenomenological model for the rates of bubble coalescence and bubble break-up in turbulent gas-liquid dispersions is proposed, based on the mixing of tracer gases within bubbles upon coalescence, in conjunction with Monte-Carlo simulations of coalescence events.
Journal ArticleDOI
Theoretical model for drop and bubble breakup in turbulent dispersions
Hean Luo,Hallvard F. Svendsen +1 more
TL;DR: In this article, a theoretical model for the prediction of drop and bubble (fluid-particle) breakup rates in turbulent dispersions was developed, based on the theories of isotropic turbulence and probability and contains no unknown or adjustable parameters.
Book
Computational Flow Modeling for Chemical Reactor Engineering
TL;DR: Flow Modeling for Reactor Engineering and Flow Modeling and Applications, a meta-modelling guide to reactor engineering and flow modeling, and applications for reactor design and engineering.
Related Papers (5)
Hydrodynamic simulations of laboratory scale bubble columns fundamental studies of the Eulerian–Eulerian modelling approach
Drag coefficient and relative velocity in bubbly, droplet or particulate flows
Mamoru Ishii,Novak Zuber +1 more