Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-18T17:55:59.786Z Has data issue: false hasContentIssue false
  • English
  • Français

Visualization of an incompressible wake with base bleed

Published online by Cambridge University Press:  28 March 2006

C. J. Wood
C. J. Wood
Affiliation:
Department of Engineering Science, University of Oxford
Get access Rights & Permissions [Opens in a new window]

Abstract

The wake behind a two-dimensional bluff body has been photographed in water in order to investigate the modifying effect of base bleed. With this technique it has been possible to measure velocities at chosen points and from these make simultaneous estimates of the base pressure and of the strength of individual vortices in the wake. The results suggest that the observed decay in the vortex structure of the wake is related to variations in the conditions of mixing between the base fluid and the external stream.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 29 , Issue 2 , 11 August 1967 , pp. 259 - 272
Copyright
© 1967 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

Bearman, P. W. 1965 Investigation of the flow behind a two-dimensional model with a blunt trailing edge and fitted with splitter plates J. Fluid Mech. 21, 241.Google Scholar
Bearman, P. W. 1966 Investigation into the effect of base bleed on the flow behind a two-dimensional model with a blunt trailing edge AGARD Conf. Proc. 4, 497.Google Scholar
Clutter, D. W., Smith, A. M. O. & Brazier, J. G. 1962 Techniques of flow visualization using water as the working medium. Douglas (El Segundo) Rept. no. Es 29075.Google Scholar
Fage, A. & Johansen, F. C. 1927 On the flow of air behind an inclined flat plate of infinite span. ARC R & M no. 1104.Google Scholar
Gerrard, J. H. 1966 The mechanics of the formation region of vortices behind bluff bodies J. Fluid Mech. 25, 401.Google Scholar
Hoerner, S. F. 1958 Fluid Dynamic Drag 3–12. (Published by the author).
Hooker, S. G. 1936 The spacing ratio of a vortex street. Proc. Roy. Soc. A 154, 67.Google Scholar
Horlock, J. H. 1956 An investigation of the flow in manifolds with open and closed ends J. Roy. Aero. Soc. 60, 551.Google Scholar
Nash, J. F. 1962 A review of research on two-dimensional base flow. Nat. Phys. Lab. Aero. Rept. 1006.Google Scholar
Nash, J. P., Quincey, V. E. & Callinan, J. 1963 Experiments on two dimensional base flow at subsonic and transonic speeds. Nat. Phys. Lab. Aero. Rept. 1070.Google Scholar
Wood, C. J. 1964 The effect of base bleed on a periodic wake J. Roy. Aero. Soc. 68, 643.Google Scholar