TY - JOUR N2 - In the present work, the radiation of sound waves from a coaxial duct is considered. This coaxial duct has an inner wall which is infinite and has piecewise acoustically absorbent material, while the outer wall is semi-infinite and rigid. The analytical solution of the problem is found by means of the Wiener-Hopf technique. Applying the Fourier transformation to the boundary value problem, the explicit expression for the scattered field is obtained. In the end, some numerical results are displayed for different parameters and compared to rigid case. L1 - http://journals.pan.pl/Content/118242/PDF/aoa.2020.135253.pdf L2 - http://journals.pan.pl/Content/118242 PY - 2020 IS - No 4 EP - 655–662 DO - 10.24425/aoa.2020.135253 KW - Wiener-Hopf technique KW - absorbent lining KW - coaxial duct KW - acoustic radiation A1 - Öztürk, Hülya A1 - Tiryakioglu, Burhan PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 45 DA - 2020.12.28 T1 - Radiation of Sound from a Coaxial Duct Formed by a Semi-Infinite Rigid Outer Cylinder and Infinite Inner Cylinder Having Different Linings SP - 655–662 UR - http://journals.pan.pl/dlibra/publication/edition/118242 T2 - Archives of Acoustics ER -