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Calculation of Sound Scattering usin theSource Simulation Technique – Comparision of Theory and Experiment Die Quellsimulationstechnik zur Berechnung der Schallstreuung – Vergleich zwischen theoretischen und experimentellen Ergebnissen

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Abstract:

This work studies the scattering produced by a circular and an elliptical-section cylinder - especially the shadowing - both theoretically and experimentally, upon variation in the impedance of the scatterer surface. To that purpose, the source simulation technique was used [1, 2]. Variations of the method are also mentioned: "single-layer" method and the "one-point-multipole method" [1]. The matching between theoretical and experimental results was in the overall good, despite some occasional discrepancies.

German
Es wird die Streuung - insbesondere die Schallenbildung - durch einen Kreiszylinder und einen Zylinder mit elliptischem Querschnitt theoretisch und experimentell untersucht, wobei die Impedanz der Streukörperoberfläche variiert wird. Dafür wird die Quellsimulationstechnik verwendet. In der akustischen Literatur wurde die Bezeichnung "Quellsimulationstechnik" zuerst von Ochmann eingeführt [1,2]. Die Varianten des Verfahrens, nämlich die Single-Layer Methode und die Einpunkt-Multipolmethode werden vorgestellt [1]. Die Übereinstimmung zwischen theoretischen und experimentellen Ergebnissen kann man trotz einiger Diskrepanzen als gut bezeichnen.

Language: German

Document Type: Research Article

Publication date: May 1, 2000

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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