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Ondes hétérogènes et réflexion-réfraction à l'interface liquide-non-absorbant/liquide-thermovisqueux

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In linear acoustics, solutions of heterogeneous plane waves in a thennoviscous liquid, that is at rest initially, are developed. According to these results, reflection and refraction at non-absorbing and thennoviscous liquids interface are studied thoroughly, showing the coupling between acoustic and entropic modes.


Im Rahmen der linearen Akustik werden ebene, heterogene Wellen beschrieben, die sich in einer anfänglich ruhenden thermoviskosen Flüssigkeit ausbreiten. Eine direkte Anwendung der Ergebnisse erlaubt die detaillierte Untersuchung der Reflexion und der Brechung an der Grenzfläche zwischen einer nichtabsorbierenden und einer thermoviskosen Flüssigkeit; sie zeigt die thermomechanische Kopplung zwischen den akustischen und den Entropiemoden.


On décrit, dans le cadre de l'acoustique linéaire, les solutions en ondes planes hétérogènes se propageant dans un liquide thermovisqueux, initialement au repos. Une application directe de ces résultats a permis l'étude détaillée de la réflexion-réfraction à l'interface liquidenon- absorbant/liquide-thermovisqueux et montré le couplage thermo-mécanique entre les modes acoustique et entropique.
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Document Type: Research Article

Publication date: April 1, 1989

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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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