Archives of Acoustics, 44, 2, pp. 239–249, 2019
10.24425/aoa.2019.128487

Sound Wave Radiation from Partially Lined Duct

Burhan TIRYAKIOGLU
Marmara University
Turkey

Ahmet DEMIR
Karabuk University
Turkey

The radiation of sound waves from partially lined duct is treated by using the mode-matching method in conjunction with the Wiener-Hopf technique. The solution is obtained by modification of the Wiener-Hopf technique and involves an infinite series of unknowns which are determined from an infinite system of linear algebraic equations. Numerical solution of this system is obtained for various values of the problem parameters, whereby the effects of these parameters on the sound diffraction are studied. A perfect agreement is observed when the results of radiated field are compared numerically with a similar work existing in the literature.
Keywords: Wiener-Hopf; Fourier transform; duct; saddle point
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DOI: 10.24425/aoa.2019.128487