Dynamic simulation of bubbly flow in bubble columns

Pan, Y.; Duduković, Milorad P.; Chang, Ming

doi:10.1016/s0009-2509(98)00453-9

Cited by 109 publications

(60 citation statements)

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“…Following an overview of the advancements and current trends in bubble column simulation using the Eulerian multi-fluid approach is provided. The pioneering work, performed among in 1989 and 1999, reproduced the fluid dynamics in rectangular bubble columns using two-dimensional Eulerian simulations [403][404][405][406][407][408][409][410][411][412]. However, other authors [413][414][415][416] remarked that, for more accurate predictions of the bubble plume oscillation period and the turbulent quantities, three-dimensional simulations are required for both rectangular [413][414][415] and circular [416] columns.…”

Section: The Eulerian Multi-fluid Approachmentioning

confidence: 99%

Two-Phase Bubble Columns: A Comprehensive Review

2018

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We present a comprehensive literature review on the two-phase bubble column; in this review we deeply analyze the flow regimes, the flow regime transitions, the local and global fluid dynamics parameters, and the mass transfer phenomena. First, we discuss the flow regimes, the flow regime transitions, the local and global fluid dynamics parameters, and the mass transfer. We also discuss how the operating parameters (i.e., pressure, temperature, and gas and liquid flow rates), the operating modes (i.e., the co-current, the counter-current and the batch modes), the liquid and gas phase properties, and the design parameters (i.e., gas sparger design, column diameter and aspect ratio) influence the flow regime transitions and the fluid dynamics parameters. Secondly, we present the experimental techniques for studying the global and local fluid dynamic properties. Finally, we present the modeling approaches to study the global and local bubble column fluid dynamics, and we outline the major issues to be solved in future studies.

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Section: The Eulerian Multi-fluid Approachmentioning

confidence: 99%

Two-Phase Bubble Columns: A Comprehensive Review

2018

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“…2 As noted in the introduction, much of the recent CFD work on bubble columns has focused on the predictions of timeaveraged quantities such as gas holdup in the churn-turbulent regime. 7,26,29,32,49 As shown in this work, such studies are of limited utility for determining the predictive ability of two-fluid CFD models for gas-liquid flows, and for discriminating between different model formulations. For example, we show that the drag-force model primarily determines the time-averaged gas holdup, and thus the same value is obtained for laminar, homogeneous flow and for turbulent, heterogeneous flow.…”

Section: Bubble-column Flow Regimesmentioning

confidence: 99%

“…The same code has been used by Pan et al, 26,27 Padial et al, 51 and Chen and Fan 8 for simulating gas-liquid bubble columns. CFDLib uses a finite-volume technique to integrate the time-dependent equations of motion that govern multiphase flows.…”

Section: Computational Approachmentioning

confidence: 99%

“…4,6,[13][14][15][16]19,[21][22][23][24][25][26][28][29][30][31][34][35][36][37]41,[48][49][50][51][52][53] It can be observed that important aspects such as (1) bubble-bubble interactions; (2) two-phase turbulence modeling; (3) gas-liquid interfacial mass, momentum, and energy-transfer mechanisms; (4) coupling between the phases; and (5) the required grid resolution still need to be resolved. Moreover, as a general rule, most literature studies have been limited to the prediction of one particular flow regime (such as churn-turbulent flow).…”

Section: Introductionmentioning

confidence: 99%

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CFD predictions for flow‐regime transitions in bubble columns

2005

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“…When the model is applied on a pilot plant column (of the same diameter as the cold flow model) for methanol synthesis, both gas phase and liquid phase tracer responses are well predicted at seven different elevations in the hot operating pilot plant column. The same is shown to be true for FT and DME synthesis Pan et al, 1999;Gupta et al, 2001a,b;Chen et al, 2004Chen et al, , 2005. The model is not yet fully predictive at this stage as the CARPT, CT data were obtained on the equipment of the same diameter, and holdup profile was experimentally 260 M. P. Dudukovic determined.…”

Section: Innovations In Vertical Scaleupmentioning

confidence: 90%

Challenges and Innovations in Reaction Engineering

Duduković

2008

Chemical Engineering Communications

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The importance of reaction engineering in generating a myriad of products on which developed societies depend is outlined. The challenges of a political, economic, and technical nature that need to be addressed in rendering conversion of raw materials into desired products that are more environmentally friendly and sustainable are briefly discussed. It is shown that multiphase reactors are prevalent in all applications, and improvements in the reactor material and energy efficiencies lead to more environmentally benign processes. This requires, in addition to the selection of green process chemistry, systematic implementation of the multi-scale reaction engineering methodology to accomplish proper reactor type selection and scaleup for commercial applications. It is also illustrated that recent innovations in multiphase reaction engineering basically utilize two key concepts: process intensification (e.g., enhancement in mass and heat transfer rates) and simultaneous reaction and separation. Examples of these are discussed, such as micro-reactors, reactive distillation, etc. It is also shown that commercialization of bench-scale discoveries requires either scaleup in parallel or vertical scaleup. New tools for visualization of opaque multiphase flows and development of appropriate rational phenomenological multiphase reactor models for scaleup and design are also briefly discussed.

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Dynamic simulation of bubbly flow in bubble columns

Cited by 109 publications

References 0 publications

Two-Phase Bubble Columns: A Comprehensive Review

Two-Phase Bubble Columns: A Comprehensive Review

CFD predictions for flow‐regime transitions in bubble columns

Challenges and Innovations in Reaction Engineering

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