Phase Velocity and Absorption Measurements in Water Containing Air Bubbles

Abstract

The phase velocity and absorption of a continuous train of sound waves in water containing air bubbles were measured as functions of frequency from 10 kc/sec to 1 mc/sec. The data are in fairly good agreement with theories by Meyer and Skudrzyk and Carstensen and Foldy. For the bubbles investigated which constituted 0.02 percent of the volume, phase velocity varied from 500 m/sec to 2500 m/sec and peak absorption was over 30 db/cm.