Relation entre la dynamique des bulles de cavitation et les impulsions de pression produites par leurs implosions

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Abstract:

The Kirkwood-Bethe-Gilmore equation is used to determine the quantitier which characterise the radial motion of ultrasonic cavitation bubbles. From the numerical results the main features of the pulse-height distribution of pressure pulses produced by collapsing bubbles are then deduced. These features are compared to the pulse-height histograms which are experimentally obtained.

Sommaire

L'équation de Kirwood-Bethe-Gilmore est utilisée pour calculer les grandeurs qui caractérisent le mouvement radial des bulles de cavitation ultrasonore. Des résultats numériques obtenus, on déduit les caractéristiques de la distribution d'amplitudes des impulsions de pression produites par l'implosion des bulles. Ces prévisions sont alors comparées aux histogrammes d'amplitudes déterminés expérimentalement.

Zusammenfassung

Zur Berechnung der Größen, welche die Radialbewegung von ultraschallerzeugten Kavitationsblasen kennzeichnen, wird die Gleichung von Kirkwood-Bethe-Gilmore benutzt. Von den erhaltenen numerischen Ergebnissen wird die Amplitudenverteilung der durch Blasenimplosionen entstehenden Druckimpulse abgeleitet. Diese Voraussagen werden schließlich mit experimentell bestimmten Amplitudenverteilungen verglichen.

Document Type: Research Article

Publication date: January 1, 1981

More about this publication?
  • 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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