A LES-based EulerianLagrangian approach to predict the dynamics of bubble plumes Academic Article uri icon

abstract

  • 2015 The Authors. 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/x) 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.

published proceedings

  • Ocean Modelling

altmetric score

  • 0.5

author list (cited authors)

  • Fraga, B., Stoesser, T., Lai, C., & Socolofsky, S. A.

citation count

  • 63

complete list of authors

  • Fraga, Bruño||Stoesser, Thorsten||Lai, Chris CK||Socolofsky, Scott A

publication date

  • January 2016