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Title: | Diffraction of sound by a rigid screen with a soft or perfectly absorbing edge |
Authors: | Rawlins, AD |
Issue Date: | 1976 |
Publisher: | Elsevier |
Citation: | Journal of Sound and Vibration. 45(1): 53-67 |
Abstract: | A solution is obtained for the problem of the diffraction of a plane wave sound source by a semi-infinite plane. A finite region in the vicinity of the edge has a soft (pressure release) boundary condition; the remaining part of the semi-infinite plane is rigid. This solution is then used to derive an approximation for the behaviour of a rigid barrier with an absorbing edge. It is concluded ,that the absorbing material that comprises the edge need only be of the order of a wavelength long to have approximately the same effect, on the sound attenuation in the shadow side of the barrier, as a completely absorbent barrier. |
URI: | http://bura.brunel.ac.uk/handle/2438/4029 |
DOI: | http://dx.doi.org/10.1016/0022-460X(76)90667-2 |
ISSN: | 0022-460X |
Appears in Collections: | Dept of Mathematics Research Papers Mathematical Sciences |
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Fulltext.pdf | 1.36 MB | Adobe PDF | View/Open |
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