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

Fraga, Bruno, Stoesser, Thorsten ORCID:, 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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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

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