Hostname: page-component-7b7567c8c-wxvwp Total loading time: 0 Render date: 2026-11-15T21:14:03.855Z Has data issue: false hasContentIssue false
  • English
  • Français

Instabilities in the slit-jet flow field

Published online by Cambridge University Press:  20 April 2006

J. F. Foss and
D. Korschelt
J. F. Foss
Affiliation:
Department of Mechanical Engineering, Michigan State University, East Lansing, Michigan 48824
D. Korschelt
Affiliation:
Department of Mechanical Engineering, Michigan State University, East Lansing, Michigan 48824Present address: Brown Boveri & Cie, TCT-2, Gas Turbine Dept, CH-5401 Baden, Switzerland.
Get accessRights & Permissions [Opens in a new window]

Abstract

Three modes of instabilities in the slit-jet flow field are recognized. Additional evidence for the universality of the Strouhal number for the second mode ST = fw/U0 ≈ 0.43 and additional information on the wavelength (λ) between, and convection speed uc of the symmetrically placed, large-scale motions that result from this instability are presented. Specifically λ/w ≈ 1.2 and uc/U0 ≈ 0.51. The third instability mode is initiated at a Reynolds number U0w/v of approximately 1600; this instability results in a loss of the regular pattern associated with the large-scale motions.

Information

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 132 , July 1983, pp. 79 - 86
Copyright
© 1983 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. 1964 A jet-tone orifice number for orifices of small thickness-diameter ratio J. Acoust. Soc. Am. 26, 21.Google Scholar
Beavers, G. S. & Wilson, T. A. 1970 Vortex growth in jets J. Fluid Mech. 44, 97–112.Google Scholar
Birkhoff, G. & Zarantello, E. H. 1957 Jets, Wakes and Cavities, vol. 2. Academic.
Clark, T. A. & Kit, L. 1980 Shear layer transition and the sharp-edge orifice, Trans. ASME I: J. Fluids Engng 102, 219–225 (Discussion by Foss (1980)).Google Scholar
Michalke, A. 1972 The instability of free shear layers. Progress in Aerospace Science (ed. D. Kuechemann), pp. 213–239. Pergamon.
Pierce, D. 1964 A brief note on periodic disturbances in a laminar shear layer. RAE TN. Aero 2970 (June).
Valentine, H. R. 1959 Applied Hydrodynamics. Butterworths.