Visualization of the acoustic excitation of a subsonic jet
- 11 September 1980
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Fluid Mechanics
- Vol. 100 (01) , 185-192
- https://doi.org/10.1017/s0022112080001073
Abstract
The response of a subsonic round jet to internal excitation by an acoustic wave has been examined using flow visualization and noise measurements. The jet was subjected to pulse excitation and to harmonic excitation. In both cases large-scale vortex ring structures were observed in the jet mixing layer. With pulse excitation, interactions between the vortex rings were observed, but no associated noise emission could be detected.Keywords
This publication has 9 references indexed in Scilit:
- The noise from the large-scale structure of a jetJournal of Fluid Mechanics, 1978
- A time-domain analysis of the large-scale flow structure in a circular jet. Part 1. Moderate Reynolds numberJournal of Fluid Mechanics, 1977
- The interaction of sound with a subsonic jet issuing from a semi-infinite cylindrical pipeJournal of Fluid Mechanics, 1977
- The role of shear-layer instability waves in jet exhaust noiseJournal of Fluid Mechanics, 1977
- The modelling of large eddies in a two-dimensional shear layerJournal of Fluid Mechanics, 1976
- On the amplification of broad band jet noise by a pure tone excitationJournal of Sound and Vibration, 1975
- The density of organized vortices in a turbulent mixing layerJournal of Fluid Mechanics, 1975
- The design of a spark discharge acoustic impulse generatorIEEE Transactions on Acoustics, Speech, and Signal Processing, 1975
- Vortex pairing : the mechanism of turbulent mixing-layer growth at moderate Reynolds numberJournal of Fluid Mechanics, 1974