The shape instability of a gas bubble in water, subject to an ultrasonic pressure field , occurs the pressure amplitude exceeds a threshold value which is increased by increasing the damping. The bubble is highly sensitive to this phenomenon in the frequency regions of radial resonance. In this paper, the threshold amplitudes are derived from theoretical calculations carried out in a first order approximation analysis. The predictions compare favourably with available experimental data.
Instability of Motion of Gas Bubbles in a Sound Field
NABERGOJ, RADOSLAV;FRANCESCUTTO, ALBERTO
1986-01-01
Abstract
The shape instability of a gas bubble in water, subject to an ultrasonic pressure field , occurs the pressure amplitude exceeds a threshold value which is increased by increasing the damping. The bubble is highly sensitive to this phenomenon in the frequency regions of radial resonance. In this paper, the threshold amplitudes are derived from theoretical calculations carried out in a first order approximation analysis. The predictions compare favourably with available experimental data.File in questo prodotto:
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