Oxygen Transfer model for Bubble-Laden Turbulence Generated by Plunging Liquid Jets

Abstract

This paper proposed an oxygen transfer model for bubble-laden turbulence generated by plunging jets. The proposing model has been validated through comparisons with experiments for bubble velocity, liquid velocity, liquid turbulence and oxygen flux. It was found dissolved oxygen concentrations in bubbly flows was determined by local bubble behaviors and turbulent flows modified around bubbles. This bubble-mediated gas transfer via mechanical interaction between bubbles and turbulence is important to understand air-sea gas exchange in the surf zone.