Preliminary investigations of ultrasound induced acoustic streaming using particle image velocimetry

• Published in: Ultrasonics 2001-04, Vol.39 (3), p.153-156
• Main Authors: Frenkel, Victor, Gurka, Roi, Liberzon, Alex, Shavit, Uri, Kimmel, Eitan
• Format: Article
• Language: English
• Subjects: Acoustic instruments, equipment, and techniques; Acoustic streaming; Acoustical measurements and instrumentation; Acoustics; Animals; Exact sciences and technology; Fishes; Fundamental areas of phenomenology (including applications); Particle image velocimetry; Physics; Rheology; Ultrasonics; Ultrasonics, quantum acoustics, and physical effects of sound; Ultrasound intensity
• ISSN: 0041-624X; 1874-9968
• DOI: 10.1016/S0041-624X(00)00064-0

Particle image velocimetry was used to investigate ultrasound-induced acoustic streaming in a system for the enhanced uptake of substances from the aquatic medium into fish. Four distinct regions of the induced streaming in the system were observed and measured. One of the regions was identified as an preferential site for substance uptake, where the highest velocities in proximity to the fish surface were measured. A positive linear relationship was found between the ultrasound intensity and the maximum streaming velocity, where a unitless geometric factor, specific to the system, was calculated for correcting the numerical relationship between the two parameters. The results are part of a comprehensive study aimed at improving mass transdermal administrations of substances (e.g. vaccines, hormones) into fish from the aquatic medium.