Journal article

Prediction of gas holdup in partially aerated bubble columns using an EE-LES coupled model

SJ Zhu, A Ooi, R Manasseh, A Skvortsov

Chemical Engineering Science | Elsevier | Published : 2020

Abstract

Transient gas-liquid flow dynamics in partially aerated square cross-sectioned bubble columns were studied using an Eulerian–Eulerian based large eddy simulation approach. The numerical model was validated with the interfacial closures evaluated for drag, lift and virtual mass forces. The simulation data showed good agreement with both numerical predictions and experimental measurements in the literature. The current model was also shown to be able to predict the global gas holdup in the bubble column up to a very high value. Further simulations were performed to study the influences of initial liquid phase height to width ratio and inlet area to column cross-sectional area ratio on the glob..

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Grants

Funding Acknowledgements

This research project was sponsored by Defence Science and Technology. The authors acknowledge Paul Dylejko for his helpful discussions and comments.