On the Influence of Obstacle Modeling in Multiple Diffraction of Acoustic Waves
Two uniform theory of diffraction (UTD)-based formulations for the analysis of the multiple diff raction of sound when the diffracting obstacles are modeled as both rectangular sections and cylinders are hereby presented. More realistic models are proposed while at the same time the insertion losses results are compared with those obtained with a formulation already published which assumes the obstacles to be modeled as knife-edges or wedges. In this way, an analysis of the impact of obstacle modeling on sound attenuation is carried out, thus contributing to obtaining more precise acoustic propagation models when multiple diff raction caused by equi-spaced objects of rectangular or cylindrical shape has to be taken into account.
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Document Type: Research Article
Publication date: March 1, 2019
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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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