Euler-Euler Scale-Adaptive Simulation of a square cross-sectional bubble column

In this paper we present detailed Euler-Euler Scale-Adaptive Simulation (SAS) of dispersed bubbly flow in a square cross-sectioned bubble column. The main objective of this study is to investigate potential of this approach for the prediction of the bubbly flows with anisotropic liquid velocity fluctuations, in terms of mean quantities. The set of physical models describing the momentum exchange between the phases was chosen according to previous experiences of the authors. Experimental data, Euler-Euler Large Eddy Simulation (LES) are used for comparison. It was found that the presented modelling combination provides very good agreement with experimental data for the mean flow and liquid velocity fluctuations. The energy spectrum made from the resolved velocity from Euler-Euler SAS and LES is presented and discussed.