Hostname: page-component-6898cfcb55-w5hgh Total loading time: 0 Render date: 2026-11-11T13:50:40.768Z Has data issue: false hasContentIssue false
  • English
  • Français

Vortex evolution in a round jet

Published online by Cambridge University Press:  28 March 2006

H. A. Becker and
T. A. Massaro
H. A. Becker
Affiliation:
Department of Chemical Engineering, Queen's University, Kingston, Ontario, Canada
T. A. Massaro
Affiliation:
Department of Chemical Engineering, University of California, Berkeley, California
Get accessRights & Permissions [Opens in a new window]

Abstract

A study has been made of the varicose instability of an axisymmetrical jet with a velocity distribution radially uniform at the nozzle mouth except for a laminar boundary layer at the wall. The evolutionary phenomena of instability, such as the rolling up of the cylindrical vortex layer into ring vortices, the coalescence of ring vortex pairs, and the eventual disintegration into turbulent eddies, have been investigated as a function of the Reynolds number using smoke photography, stroboscopic observation, and the light-scatter technique.

Emphasis has been placed on the wavelength with maximum growth rate. The jet is highly sensitive to sound and the effects of several types of acoustic excitation, including pure tones, have been determined.

Information

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 31 , Issue 3 , 26 February 1968, pp. 435 - 448
Copyright
© 1968 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.)

Article purchase

Temporarily unavailable

References

Anderson, A. B. C. 1954 J. Acoust. Soc. Am. 26, 21.
Anderson, A. B. C. 1955 J. Acoust. Soc. Am. 27, 1048.
Anderson, A. B. C. 1956 J. Acoust. Soc. Am. 28, 914.
Andrade, E. N. da C. 1941 Proc. Phys. Soc. 53, 329.
Batchelor, G. K. & Gill, A. E. 1962 J. Fluid Mech. 14, 529.
Becker, H. A., Hottel, H. C. & Williams, G. C. 1963 Ninth Symposium (International) on Combustion, p. 7.
Becker, H. A., Hottel, H. C. & Williams, G. C. 1967 On the light-scatter technique for the study of turbulence and mixing J. Fluid Mech. 30, 259.Google Scholar
Cometta, C. 1957 An investigation of the unsteady flow patterns in the wake of cylinders and spheres using a hot-wire probe. Technical Note no. AFOSR-TN-57-760. Document, no. AD 136749: U.S. Air Force Office of Scientific Research.
Craya, A. & Curtet, R. 1955 C.r. hebd. Seanc. Acad. Sci., Paris 241, 621.
Domm, U., Fabian, H., Wehrmann, O & Wille, R. 1955 Contributions on the mechanics of laminar-turbulent transition of jet flow. Air Force Office of Scientific Research. Techt. Rept. (AFOSR TR), 56–9; Armed Forces Technical Information Agency (ASTIA), Document, no. AD 82004.Google Scholar
Domm, U. 1956 Über eine Hypothese, die den Mechanisms der Turbulenz-Entstehung betrifft. DVL Bericht no. 23.Google Scholar
Johansen, F. C. 1929 Proc. Roy. Soc. A126, 231.
Kolpin, M. A. 1964 J. Fluid Mech. 18, 529.
Leconte, J. 1858 Phil. Mag. 15, 235.
Michalke, A. 1964 Ingenieur Archiv, 33, 264; J. Fluid Mech. 19, 543.
Michalke, A. & Schade, A. 1963 Ingenieur Archiv. 33, 1.
Rayleigh, LORD 1879 Phil. Mag. 15, 235 (also Scientific Papers, Art. 61).
Rayleigh, LORD 1884 Phil. Mag. 17, 188 (also Scientific Papers, Art. 110).
Rayleigh, LORD 1899 Scientific Papers, Arts. 58, 60 and 66. Cambridge University Press.
Sato, H. 1960 J. Fluid Mech. 7, 53.
Schade, H. 1964 Phys. Fluids, 7, 623.
Schade, H. & Michalke, A. 1962 Z. Flugwissenschaft, 10, 147.
Schlichting, H. 1962 Boundary Layer Theory (fourth edition). New York: McGraw-Hill.
Wehrmann, O., Fabian, H. & Wille, R. 1956 Further investigations of the laminarturbulent transition in a free jet (annular nozzle). Air Force Office of Scientific Research. Tech. Rept. (AFOSR TR), 57–31; Armed Forces Technical Information Agency (ASTIA), Document, no. AS 126494.Google Scholar
Wehrmann, O. & Wille, R. 1957 Proc. Boundary Layer Symposium, Freiburg, p. 387.
Wille, R. 1963 Growth of velocity fluctuations leading to turbulence in free shear flow. Tech. Rept. Hermann Föttinger Institut für Strömungstechnik an der Technischen Universität Berlin.Google Scholar