Improvement of acoustic theory of ultrasonic waves in dilute bubbly liquids.
The theory of the acoustics of dilute bubbly liquids is reviewed, and the dispersion relation is modified by including the effect of liquid compressibility on the natural frequency of the bubbles. The modified theory is shown to more accurately predict the trend in measured attenuation of ultrasonic waves. The model limitations associated with such high-frequency waves are discussed.
Ando
Keita
K
Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, USA. kando@caltech.edu
Colonius
Tim
T
Brennen
Christopher E
CE
D000465:Algorithms; D006859:Hydrogen; D016014:Linear Models; D008962:Models, Theoretical; D011312:Pressure; D015203:Reproducibility of Results; D014465:Ultrasonics
D006859:Hydrogen