Temat: Wiener-Hopf technique - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Radiation of Sound from a Coaxial Duct Formed by a Semi-Infinite Rigid Outer Cylinder and Infinite Inner Cylinder Having Different Linings
Autorzy:: Öztürk, Hülya
Tiryakioglu, Burhan
Powiązania:: https://bibliotekanauki.pl/articles/1953522.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: Wiener-Hopf technique
absorbent lining
coaxial duct
acoustic radiation
Opis:: 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.
Źródło:: Archives of Acoustics; 2020, 45, 4; 655-662
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Internal wave diffraction by a strip of an elastic plate on the surface of a stratified fluid
Autorzy:: Dolai, P.
Dolai, D. P.
Powiązania:: https://bibliotekanauki.pl/articles/265771.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: równanie Kleina-Gordona
płyn warstwowy
metoda Wienera-Hopfa
stratified fluid
Klein-Gordon equation
Wiener-Hopf technique
steepest descent method
Opis:: The problem of internal wave diffraction by a strip of an elastic plate of finite width present on the surface of an exponentially stratified liquid is investigated in this paper. Assuming linear theory, the problem is formulated in terms of a function related to the stream function describing the motion in the liquid. The related boundary value problem involves a hyperbolic type partial differential equation (PDE), known as the Klein Gordon equation. The method of Wiener-Hopf is utilized in the mathematical analysis to a slightly generalized boundary value problem (BVP) by introducing a small parameter, and the problem is solved approximately for large width of the plate. In the final results, this small parameter is made to tend to zero. The diffracted field is obtained in terms of integrals, which are then evaluated asymptotically in different regions for a large distance from the edges of the plate and the results are interpreted physically.
Źródło:: International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 5-26
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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