Diffraction of sound waves by a lined cylindrical cavity

TİRYAKİOĞLU B.

INTERNATIONAL JOURNAL OF AEROACOUSTICS, cilt.19, ss.38-56, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1177/1475472x20905043
  • Dergi Adı: INTERNATIONAL JOURNAL OF AEROACOUSTICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.38-56
  • Marmara Üniversitesi Adresli: Evet

Özet

In this paper, diffraction of sound waves through a lined cavity is analyzed rigorously. The inner-outer surfaces of the cavity and the base of the cavity are coated with three different absorbing linings. By using the Fourier transform technique in conjunction with the Mode-Matching method, the related boundary value problem is formulated as a Wiener-Hopf equation. In the solution, two infinite sets of unknown coefficients are involved that satisfy two infinite systems of linear algebraic equations. Numerical solution of this system is obtained for various values of the parameters of the problem. The graphical results are also presented which show that how efficiently the sound diffraction can be reduced by selection of problem parameters.