Weak Shock Propagation in Liquid-Filled Tubes
The most essential theoretical and experimental works related to the propagation of weak shock waves, i.e. sawtooth waves, N-waves and single shock pulses, in fluid-filled tubes are critically reviewed and simple theoretical expressions comprising shock front losses as well as wall losses are derived for weak shock propagation in fluid-filled, rigid-walled tubes. Pressure-time courses of electrodynamically generated weak shock waves propagating axially along a liquidfilled, thick-walled steel tube are measured, showing a fair agreement with the simple theory in the maximum peak pressure range below 5·106 N/m2. Irregular pressure decays are found at distances from the sound source decreasing with increasing initial source pressure for all liquids investigated. The cause of these irregularities together with the possible influence of acoustical streaming and bulk viscosity effects are discussed.
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Document Type: Research Article
Publication date: January 1, 1978
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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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