Please use this identifier to cite or link to this item: https://doi.org/10.1134/S1063771013050205
Title: Sound propagation in two-dimensional waveguide with circular wavefront
Authors: Gupta, A.
Lim, K.-M. 
Heng, C.C. 
Keywords: circular wavefront
numerical method
radial waveguide
Webster horn equation
Issue Date: Sep-2013
Source: Gupta, A., Lim, K.-M., Heng, C.C. (2013-09). Sound propagation in two-dimensional waveguide with circular wavefront. Acoustical Physics 59 (5) : 493-497. ScholarBank@NUS Repository. https://doi.org/10.1134/S1063771013050205
Abstract: Sound propagation through a waveguide is generally modeled by the Webster horn equation which assumes a planar pressure wavefront. However, most of the sources are non-planar in nature. In this work, a 1-D model is derived for sound propagation through a 2-D waveguide with circular wavefront. The model is derived from the 2-D Helmholtz equation using the weighted residual method. The model assumes a uniform pressure across the angular coordinate at a given radial distance. A 2-D finite element model is used to validate the results for different waveguide geometries and it shows good agreement. © 2013 Pleiades Publishing, Ltd.
Source Title: Acoustical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/61342
ISSN: 10637710
DOI: 10.1134/S1063771013050205
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