Diffraction of acoustic waves by a semi-infinite cylindrical impedance pipe of certain wall thickness

BUYUKAKSOY A., Polat B.

JOURNAL OF ENGINEERING MATHEMATICS, cilt.33, sa.4, ss.333-352, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 33 Sayı: 4
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1023/a:1004301829276
  • Dergi Adı: JOURNAL OF ENGINEERING MATHEMATICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.333-352
  • Anahtar Kelimeler: acoustics, pipe, diffraction, Wiener-Hopf technique, high-frequency asymptotics
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

An asymptotic high-frequency solution is presented for the problem of diffraction of acoustic waves emanating from a ring source by a semi-infinite cylindrical pipe of certain wall thickness having different internal, external and end surface impedances. Through the application of the Fourier-transform technique in conjunction with the Mode Matching method, the diffraction problem is described by a modified Wiener-Hopf equation of the second kind and then solved approximately. Various numerical results illustrating the effects of the parameters of the problem on the diffraction phenomenon are presented.