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Starting flow over spoilers, double steps and cavities

Published online by Cambridge University Press:  21 April 2006

F. Finaish
Affiliation:
Department of Aerospace Engineering Sciences, University of Colorado, Boulder, Colorado 80309, USA
P. Freymuth
Affiliation:
Department of Aerospace Engineering Sciences, University of Colorado, Boulder, Colorado 80309, USA
W. Bank
Affiliation:
Department of Aerospace Engineering Sciences, University of Colorado, Boulder, Colorado 80309, USA

Abstract

The development of two-dimensional vortex patterns in accelerating flow starting from rest has been investigated by streakline visualization and documented in photographic sequences. We considered flow over spoilers, double steps and cavities. A limited parametric analysis is provided for some of the photographic results.

Type
Research Article
Copyright
© 1986 Cambridge University Press

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References

Finaish F., Palmer, M. & Freymuth P.1984 A parametric analysis of vortex patterns visualized behind airfoils in accelerating flow. Ninth Symp. on Turbulence, 1–3 Oct., 1984, Rolla, Missouri, preprint vol., paper no. 10, p. 101.Google Scholar
Francis M. S., Keese J. E., Lang J. D., Sparks, G. W. & Sisson G. E.1979 Aerodynamic characteristics of an unsteady separated flow. AIAA Paper 171332.Google Scholar
Freymuth P.1985 The vortex patterns of dynamic separation: a parametric and comparative study. Prog. Aerospace Sci. 22, 161.Google Scholar
Freymuth P., Bank, W. & Palmer M.1983 Visualization of accelerating flow around an airfoil at high angles of attack. Z. Flugwiss. Weltraunforschung 7, 392.Google Scholar
Freymuth P., Bank, W. & Palmer M.1985 Use of titanium tetrachloride for visualization of accelerating flow around airfoils. Flow Visualization III, Hemisphere 99.Google Scholar
Koga D. J., Reisenthel, P. & Nagib H. M.1984 Control of separated flow fields using forced unsteadiness. IIT Heat Transfer and Fluids Rep. R-84–1. Illinois Institute of Technology.Google Scholar
Reynolds, W. C. & Carr L. W.1985 Review of unsteady, driven, separated flows. AIAA paper 850531.Google Scholar
Rockwell, D. & Knisely C.1979 The organized nature of flow impingement upon a corner. J. Fluid Mech. 93, 413.Google Scholar
Taneda S.1979 Visualization of separating Stokes flows. J. Phys. Soc. Japan 46, 1935.Google Scholar
Van Dyke M.1982 An Album of Fluid Motion. Parabolic.