Theoretical Investigation of Heat and Streaming Generated by High Intensity Ultrasound
Some nonlinear effects associated with intense sound fields in fluids, are considered theoretically. The analysis is based on the fundamental equations of motion for a homogeneous, thermoviscous fluid, for which thermal equations of state exist. Model equations are derived and used to analyze nonlinear sources for generation of heat and streaming, and other changes in the ambient state of the fluid. The intensity of a finite amplitude sound field is calculated, and related to the sources of generation of higher order effects. Fluctuations in the coefficients of viscosity and thermal conductivity caused by the sound field, are accounted for.
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Document Type: Research Article
Publication date: 1999-11-01
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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