A LES-based Eulerian–Lagrangian approach to predict the dynamics of bubble plumes

Fraga, Bruno, Stoesser, Thorsten ORCID: https://orcid.org/0000-0001-8874-9793, Lai, Chris C.K. and Socolofsky, Scott A. 2016. A LES-based Eulerian–Lagrangian approach to predict the dynamics of bubble plumes. Ocean Modelling 97 , pp. 27-36. 10.1016/j.ocemod.2015.11.005

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Abstract

An approach for Eulerian–Lagrangian large-eddy simulation of bubble plume dynamics is presented and its performance evaluated. The main numerical novelties consist in defining the gas-liquid coupling based on the bubble size to mesh resolution ratio (Dp/Δx) and the interpolation between Eulerian and Lagrangian frameworks through the use of delta functions. The model’s performance is thoroughly validated for a bubble plume in a cubic tank in initially quiescent water using experimental data obtained from high-resolution ADV and PIV measurements. The predicted time-averaged velocities and second-order statistics show good agreement with the measurements, including the reproduction of the anisotropic nature of the plume’s turbulence. Further, the predicted Eulerian and Lagrangian velocity fields, second-order turbulence statistics and interfacial gas-liquid forces are quantified and discussed as well as the visualization of the time-averaged primary and secondary flow structure in the tank

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering Water Research Institute (WATER)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Additional Information:	This is an open access article under the terms of the CC-BY Attribution 4.0 International license.
Publisher:	Elsevier
ISSN:	1463-5003
Date of First Compliant Deposit:	30 March 2016
Date of Acceptance:	1 November 2015
Last Modified:	05 May 2023 22:36
URI:	https://orca.cardiff.ac.uk/id/eprint/83949

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