570 - Acoustical waves genereted by a pulsating sphere with time-varying radius
Lakhdar G.
Abstract
This paper presents a theoretical approach for analysing the behaviour of acoustical waves due to a pulsating sphere with time-varying radius. Because of the interdependence of the space and time coordinates, the classic analytical methods cannot be applied for solving the governing equation of the system. The problem is solved using an analytical method developed in previous papers [1,2].The exact solution is then determined and the analyse of the acoustic behaviour shows that all the physical properties of the system are dynamic. [1] L. Gaffour, Analytical method for solving the one dimensional wave equation with moving boundary, Progress in Electromagnetic Research, P.I.E.R. 20,63-73,(1998). [2] L. Gaffour, Analytical solution of the dispersive wave equation with moving boundary, icsv10, Swiden,2003.
Citation
Lakhdar G.: Acoustical waves genereted by a pulsating sphere with time-varying radius, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
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