Abstract
A wide class of problems related to wave propagation phenomena in acoustics can be treated by applying the linear theory. The governing equations can be derived by combining the hydrodynamic equations of motion and the local mass balance, the continuity equation. In order to obtain a linearized form of the resulting equations, all the physical quantities and their spatial derivatives are considered to be small variations of their undisturbed position. Furthermore, the fluid should be in rest, i e , there shouldn’t be any steady flow. Assuming the medium to be an ideal gas and the constitutional change of the fluid at the wave front to be adiabatic leads to a relationship between the pressure and the density of the fluid.
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Dedicated to Prof. Dr.-Ing. Dr.-Ing. E.h. Dr. h.c.mult. E. Stein on the occasion of his 65th birthday
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© 1997 Springer-Verlag Berlin Heidelberg
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Tröndle, G., Jäger, M., Antes, H. (1997). Efficient Calculation of Acoustic Fields by Boundary Element Method. In: Wendland, W.L. (eds) Boundary Element Topics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60791-2_2
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DOI: https://doi.org/10.1007/978-3-642-60791-2_2
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