Scattering of Sound Waves in Two Stepped Non-uniformly Lined Duct

• Autorzy: Tiryakioglu Ayse , Demir Ahmet

Identyfikatory

DOI

10.24425/aoa.2020.134068

• Języki publikacji: EN

Abstrakty

EN

Scattering of sound waves in two stepped cylindrical duct which walls are coated with different acoustically absorbent materials is investigated by using Wiener-Hopf technique directly and by determining scattering matrices. First, by using Fourier transform technique we obtain a couple of modified Wiener-Hopf equations whose solutions involve four sets of infinitely many unknown expansion coefficients providing systems of linear algebraic equations. Then we determine scattering matrices of the problem and we state the total transmitted field by using generalized scattering matrix method. Numerical results are compared for different parameters.

Słowa kluczowe

EN

Wiener-Hopf; scattering matrices; step discontinuity; impedance discontinuity; duct

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2020
• Tom: Vol. 45, No. 3
• Strony: 511--520
• Opis fizyczny: Bibliogr. 38 poz., rys., wykr.

Twórcy

autor

Tiryakioglu Ayse

• Department of Mathematics, Gebze Technical University, Gebze, Kocaeli, Turkey

autor

Demir Ahmet

• Department of Mechatronics Engineering, Karabuk University, Karabuk, Turkey

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