Sound radiation from a semi-infinite circular pipe having an arbitrary profile of orifice
- 1 May 1976
- journal article
- conference paper
- Published by Acoustical Society of America (ASA) in The Journal of the Acoustical Society of America
- Vol. 59 (5) , 1033-1039
- https://doi.org/10.1121/1.380967
Abstract
A general solution for the sound radiated from a circular pipe having an arbitrary inside profile of orifice is obtained by the use of Laplace transforms and the Wiener–Hopf technique. The pipe may include vibrating surfaces. Results are calculated for the velocity potential at a large distance from the orifice and for the reflection coefficient for the dominant-mode component of the velocity potential in the pipe. The solution is applicable, for example, to the design of an acoustic transducer, and for noise control from the orifice. Some numerical results for the velocity potential of a model loudspeaker and for the excess attenuation of a muffler near the open end of a pipe are presented graphically. Subject Classification:[43]20.55, [43]20.15.Keywords
This publication has 0 references indexed in Scilit: