Self-action of ultrasonic beams for biological applications

Theoretical and experimental investigations of powerful ultrasonic beams self-focusing in liquids are described. Calculations of the conditions to observe self-action as a result of sound-induced heating of liquids are reported. The effects of controlled self-action of ultrasonic waves in high-visco...

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Bibliographic Details
Published in:Ultrasonics 1999-03, Vol.37 (3), p.247-255
Main Authors: Krasnoslobodtsev, A.V., Lyakhov, G.A., Shipilov, K.F.
Format: Article
Language:English
Subjects:
Absorption
Acoustic dispersion
Acoustics
Benzene - chemistry
Biotechnology
Hot Temperature
Humans
Lasers
Membranes, Artificial
Models, Chemical
Models, Theoretical
Non-linear thermal effects
Rheology
Self-focusing
Self-induced transparency
Solutions - chemistry
Thermodynamics
Ultrasonics
Ultrasound
Viscosity
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Description
Summary:Theoretical and experimental investigations of powerful ultrasonic beams self-focusing in liquids are described. Calculations of the conditions to observe self-action as a result of sound-induced heating of liquids are reported. The effects of controlled self-action of ultrasonic waves in high-viscosity liquids are demonstrated in experiments. A hydrodynamic mechanism of the acoustic dispersion technique is developed. The rate of this process, as a function of ultrasound intensity, including the effects of self-focusing and self-transparency, is evaluated.
ISSN:0041-624X
1874-9968
DOI:10.1016/S0041-624X(98)00058-4