Scattering of a plane wave by a cylinder with surface impedance that varies with position

Authors

  • Paulo Henrique Trombetta Zannin Lab. de Acústica Ambiental, Centro Politécnico, Univ. Federal do Paraná, Curitiba - Parana - CEP 81531-990, Brazil
  • Walter Paucar Casas Lab. de Acústica Ambiental, Centro Politécnico, Univ. Federal do Paraná, Curitiba - Parana - CEP 81531-990, Brazil
  • Fabiano Belisário Diniz Lab. de Acústica Ambiental, Centro Politécnico, Univ. Federal do Paraná, Curitiba - Parana - CEP 81531-990, Brazil
  • Clifton Roberto Giovaninni Lab. de Acústica Ambiental, Centro Politécnico, Univ. Federal do Paraná, Curitiba - Parana - CEP 81531-990, Brazil

Keywords:

Acoustic impedance, Acoustic radiators, Attenuation, Boundary conditions, Computer simulation, Plane wave scattering

Abstract

In this work 'the source simulation technique' was used to calculate the scattering of a plane wave by a circular cylinder with surface impedance that varies with position. The basic idea of the source simulation technique is to replace the scatterer by a system of simple sources located within the envelope of the original body. The efficiency of the method was verified through the comparison between numerical results and experimental data. The calculation of the scattering was performed for the variants of the method: the single-layer method and the one-point multipole method. The matching between theoretical and experimental results was in the overall good, despite some occasional discrepancies.

Additional Files

Published

2003-03-01

How to Cite

1.
Zannin PHT, Casas WP, Diniz FB, Giovaninni CR. Scattering of a plane wave by a cylinder with surface impedance that varies with position. Canadian Acoustics [Internet]. 2003 Mar. 1 [cited 2024 Dec. 5];31(1):17-24. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1518

Issue

Vol. 31 No. 1 (2003)

Section

Technical Articles

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