Stereoscopic high-speed recording of bubble filaments.
Filamentary formations of acoustic cavitation bubbles in an ultrasonic resonator are recorded by high-speed stereoscopic means. The bubble locations and motions are reconstructed in three dimensions, and a velocity distribution of bubbles is obtained. Experimental bubble trajectories are compared to a one-to-one simulation by a particle modeling approach which shows reasonable agreement. Such investigations are important for a better understanding of the mechanisms taking place in applications of intense ultrasound in liquids, and for verification and improvement of particle modeling of cavitation bubbles.
Appel
J
J
Drittes Physikalisches Institut, Göttingen University, Bürgerstrasse 42-44, 37073 Göttingen, Germany.
Koch
P
P
Mettin
R
R
Krefting
D
D
Lauterborn
W
W