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Author Huang, Hai-Ying ♦ Kamakura, Tomoo ♦ Kumamoto, Yoshiro
Source J-STAGE
Content type Text
Publisher Acoustical Society of Japan
Language English
Subject Keyword Acoustic streaming ♦ Temperature elevation ♦ Focused beam
Abstract Ultrasound energy losses due to viscosity in a fluid induce acoustic streaming globally and elevate temperature locally. Generally, the flow induced in the beam reduces the elevation of temperature by cooling. The present report seeks to clarify the cooling effect of streaming on the ultrasound heating in three kinds of fluid with different viscosities. Numerical examples of the streaming velocity and temperature elevation are given along and across the beam axis for a Gaussian focusing system. The effect of buoyancy on the generation of acoustic streaming is usually neglected. However, the streaming significantly changes the spatial distribution of the temperature, in particular, in a fluid with high viscosity.
ISSN 03882861
Learning Resource Type Article
Publisher Date 1997-01-01
e-ISSN 21853509
Journal Journal of the Acoustical Society of Japan (E)(ast1980)
Volume Number 18
Issue Number 5
Page Count 6
Starting Page 247
Ending Page 252


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