Hostname: page-component-848d4c4894-nr4z6 Total loading time: 0 Render date: 2024-05-01T21:51:03.325Z Has data issue: false hasContentIssue false
  • English
  • Français

Directional acoustic radiation from a supersonic jet generated by shear layer instability

Published online by Cambridge University Press:  29 March 2006

Christopher K. W. Tam
Christopher K. W. Tam
Affiliation:
Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, Massachusetts
Get access Rights & Permissions [Opens in a new window]

Abstract

A theory on the generation mechanism of directional acoustic radiation from a supersonic jet is proposed. The theory is based on the concept of instability of the shear layer at the boundary of the jet close to the nozzle. Theoretical prediction of the directional wave pattern is found to agree with shadowgraphic observation.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 46 , Issue 4 , 27 April 1971 , pp. 757 - 768
Copyright
© 1971 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Adamson, T. C. & Nicholls, J. A. 1959 On the structure of jets from highly underexpanded nozzles into still air J. Aerospace Sci. 26, 16.Google Scholar
Briggs, R. J. 1964 Electron Stream Interactions with Plasmas. MIT Press.
Dosanjh, D. S. & Yu, J. C. 1969 Noise from underexpanded axisymmetric jet flows using radial jet flow impingement. Proceedings of AFOSR-UTIAS Symposium, May 1968, Toronto.
Fejer, J. A. & Miles, J. W. 1963 On the stability of a plane vortex sheet with respect to three-dimensional disturbances J. Fluid Mech. 15, 335.Google Scholar
Hatanaka, H. 1949 Stability of tangential discontinuities in a compressible fluid J. Soc. Sci. Culture, Japan, 2, 3.Google Scholar
Landau, L. 1944 Stability of tangential discontinuities in a compressible fluid. Akademia Nauk, SSSR. Comptas.
Lowson, M. V. & Ollerhead, J. B. 1968 Visualization of noise from cold supersonic jets J. Acoustic Soc. Am. 44, 624.Google Scholar
Miles, J. W. 1958 On the disturbed motion of a plane vortex sheet J. Fluid Mech. 4, 538.Google Scholar
Ollerhead, J. B. 1966 Some shadowgraph experiments with a cold supersonic jet. Wyle Res. Rep. WR 66–44.Google Scholar
Ollerhead, J. B. 1969 On the prediction of the near field noise of supersonic jets. NASA CR 857.
Pai, S. I. 1954 On the stability of a vortex sheet in an inviscid compressible fluid J. Aero. Sci. 21, 325.Google Scholar
Potter, R. C. 1968 An investigation to locate the acoustic sources in a high speed jet exhaust stream. Wyle Lab. Res. Staff Tech. Rep. WR 68–4.Google Scholar
Sturrock, R. C. 1958 Kinematics of growing waves Phys. Rev. 112, 1488.Google Scholar
Tam, C. K. W. 1967 A note on disturbances in slightly supercritical plane Poiseuille flow J. Fluid Mech. 30, 17.Google Scholar