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International Journal of Fluid Mechanics Research
Transmission of Sound through the Junction of a Plane and an Wedge-Shaped Waveguide
V. T. Matsypura
National Engineering University of Ukraine "KPI", Kyiv, Ukraine
The solution of the problem of sound propagation in a structure consisting of a junction of a plane and of a wedge-shaped waveguide is constructed. The parameters of the distribution are represented in terms of eigenfunctions of the two waveguides. Matching of the fields of the two waveguides is achieved by introducing an intermediate domain in the form of a circle segment. The introduction of this domain allows rigorous matching of the acoustic fields in waveguides with different geometries. The dependence of the energy coefficient of transmission of sound through the matching zone on the waveguide parameters and on the attendant restructuring of the acoustic field is investigated. Conditions of acoustic radiation of a piston located in a plane waveguide with a horn are analyzed.
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