Theoretical analysis of cavitation enhancement by second-harmonic superimposition

Author

Umemura, Shin-ichiro ; Kawabata, Ken-ichi ; Sasaki, Kazuaki

Volume

3

fYear

1994

fDate

Oct. 31 1994-Nov. 3 1994

Firstpage

1843

Abstract

Recent in vitro and in vivo experiments have demonstrated that sonochemical reactions can be greatly accelerated when the second harmonic is superimposed on the ultrasonic field. The effect of second-harmonic superimposition on the rectified diffusion through the gas-liquid interface of cavitated micro bubbles is theoretically estimated. The theory approximately explains the dependence of the in vitro sonochemical reaction rate on the combination of the fundamental and the second-harmonic amplitudes

Keywords

biological effects of acoustic radiation; bubbles; cavitation; harmonic generation; nonlinear acoustics; ultrasonic effects; 0.5 MHz; biological tissues; cavitated micro bubbles; cavitation enhancement; fundamental amplitudes; gas-liquid interface; in vitro experiments; in vitro sonochemical reaction rate; in vivo experiments; rectified diffusion; second-harmonic amplitudes; second-harmonic superimposition; sonochemical reactions; ultrasonic field; Acoustic frequency conversion; Acoustic radiation effects; Biological effects of acoustic radiation; Biological tissues; Frequency conversion;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE

Conference_Location

Cannes, France

Print_ISBN

0-7803-2012-3

Type

conf

DOI

10.1109/ULTSYM.1994.401949

Filename

401949