Modeling and analysis of ultrasonic cavitation for permeation enhancement

Abstract

The growth and collapse of acoustic (ultrasonic) cavitation bubbles have an important influence on the permeable properties of fluid or human tissue. The influence mechanism needs further research. The dynamic model of acoustic cavitation bubbles induced by mix frequencies was built based on the Rayleigh-Plesset equation. The growth and collapse of acoustic cavitation were modeled and the movements of the interface were analyzed. The different radius and frequencies of acoustic cavitation bubbles were simulated. The suitable combination both low and high frequencies can enhance the ultrasonic cavitation and therefore profit permeation enhancement to human tissue.