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Scaled Models for Underwater Acoustics and Geotechnics Applications

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Abstract:

The aim of this study was to investigate whether scaled models are useful tools for the validation of numerical codes for sound propagation in the ocean and to discuss the advantages and drawbacks of this approach for the modellers. Comparisons were made between numerical results obtained with the SAFARI code and experimental data obtained in a water tank. Preliminary results were very promising and showed that scaled models are useful tools for underwater acoustics applications and especially for the case of propagation loss estimation. Another example showing the relevance of scaled models for sea bottom characterization is described. Some results obtained in the laboratory are presented and their usefulness prior to full-scale investigations is investigated. Among the main advantages of the use of scaled models it can be mentioned the repetitiveness of the measurements and the precise determination of all the physical parameters during the experiments, which is never the case during sea trials. Finally, the applicability and also the flexibility of this approach to describe very complex situations is discussed.

Document Type: Research Article

Publication date: 2002-09-01

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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