The saddle point method applied to some problems in acoustics

• Autorzy: Snakowska A. , Witkowski P. , Idczak H.
• Konferencja: International Symposium on HYDROACOUSTICS AND ULTRASONICS EAA Symposium (formerly 13th FASE Symposium) Gdańsk-Jurata, 12-16 May 1997
• Języki publikacji: EN

Abstrakty

EN

The paper presents examples of applying the saddle point method (called also the method of the steepest descent path) to some problem s of acoustics. The method is shortly reminded in its basic form and more complex options which, however, improve the results and widen the range of eventual applications. As examples the phenomena of reflection and transmission of the spherical wave at a fluid-fluid interface and the far field radiated from the circular duet are discussed.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 1997
• Tom: Vol. 1
• Strony: 321--326
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Snakowska A.

• Institute of Physics, Pedagogical University 35-310 Rzeszów, Rejtana 16a
• Institute of Telecommunication and Acoustics, Wrocław Technical University, 50-370 Wrocław, Wybrzeże Wyspiańskiego 27

autor

Witkowski P.

• Institute of Physics, Pedagogical University 35-310 Rzeszów, Rejtana 16a
• Institute of Telecommunication and Acoustics, Wrocław Technical University, 50-370 Wrocław, Wybrzeże Wyspiańskiego 27

autor

Idczak H.

• Institute of Physics, Pedagogical University 35-310 Rzeszów, Rejtana 16a
• Institute of Telecommunication and Acoustics, Wrocław Technical University, 50-370 Wrocław, Wybrzeże Wyspiańskiego 27

Bibliografia

• [1] Brekhovskikh L., (1980), Waves in Layered Media, Academic, New York.
• [2] Plumpton N. G., Tindle C. T., (1989), Saddle point analysis of the refleeted acoustic field, .J. Acoust. Soc. Am., Vol. 85, No. 3, 1115- 1123.
• [3] Saracco G., Corsain G., Leandre .J., Cazanhes C., (1991), Propagation d'ondes sphériques monochromatiques à travers une interface plane fluide/ fluide: applications numeriques et experimentales au dioptre plan air / eau, Acustica, Vol. 73, 21-32.
• [4] Skudrzyk E. (1971), The foundations of acoustics, Springer- Verlag, Wien-Naw York.
• [5] Snakowska A., (1992), The Acoustic Far Field of an Arbitrary Bessel Mode Radiaring from a Semi-Infinite Unfl.anged Cylindrical Wave-Guide, Acustica, Vol. 77, 53-62.
• [6] Westwood E. K., (1989), Complex ray methods for acoustic interaction at a fluid-fluid interface, J. Acoust. Soc. Am., Vol. 85, No. 5, 1872-1884.