Measurement of Oxygen Transfer from Air Bubbles to Water

Abstract

This paper presents fundamental properties of concentrations of oxygen dissolved from air-bubbles pumped into water with the aim to understand aeration effects to oxygen supply in the surf zone. Fluorescence imaging experiments were performed to identify relations of the local transfer of oxygen and the bubble size distribution. It has been found that the both of spatial distributions and temporal variations of dissolved oxygen were described by the number densities of small bubbles less than 2.0 mm.