Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-27T01:53:37.938Z Has data issue: false hasContentIssue false
  • English
  • Français

Three-dimensional vortex patterns in a starting flow

Published online by Cambridge University Press:  21 April 2006

P. Freymuth ,
F. Finaish  and
W. Bank
P. Freymuth
Affiliation:
Department of Aerospace Engineering Sciences, University of Colorado, Boulder, Colorado 80309
F. Finaish
Affiliation:
Department of Aerospace Engineering Sciences, University of Colorado, Boulder, Colorado 80309
W. Bank
Affiliation:
Department of Aerospace Engineering Sciences, University of Colorado, Boulder, Colorado 80309
Get access Rights & Permissions [Opens in a new window]

Abstract

Vortical-pattern visualization for the starting flow behind airfoils is extended from a chordwise or two-dimensional mode to a spanwise or three-dimensional mode. We demonstrate the capabilities and limits of the extended method by means of selected photographic frames and sequences.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 161 , December 1985 , pp. 239 - 248
Copyright
© 1985 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

Brown, F. N. M. 1965 The physical model of boundary layer transition. In Proc. 9th Midwestern Mechanics Conf., U. of Wisconsin, p. 421.
Clark, J. A. & Kit, L. 1980 Shear layer transition and the sharp-edged orifice. Trans. ASME I: J. Fluids Engng 102, 219.Google Scholar
Fales, E. N. 1955 A new laboratory technique for the investigation of the origin of fluid turbulence. J. Franklin Inst. 259, 491.Google Scholar
Freymuth, P. 1966 On transition in a separated laminar boundary layer. J. Fluid Mech. 25, 683.Google Scholar
Freymuth, P., Bank, W. & Palmer, M. 1983a Visualization of accelerating flow around an airfoil at high angles of attack. Z. Flugwiss. Weltraumforschung 7, 392.Google Scholar
Freymuth, P., Bank, W. & Palmer, M. 1983b Use of titanium tetrachloride for visualization of accelerating flow around airfoils. In 3rd Intl Symp. on Flow Visualization, Ann Arbor, Sept. 6–9, Preprint volume, p. 800.
Freymuth, P., Bank, W. & Palmer, M. 1984 Vortices around airfoils. Am. Scient. 72, 242.Google Scholar
Freymuth, P., Bank, W. & Palmer, M. 1985 Further experimental evidence of vortex splitting. J. Fluid Mech. 152, 289.Google Scholar
Gad-el-Hak, M., Blackwelder, R. F. & Riley, J. J. 1981 On the growth of turbulent regions in laminar boundary layers. J. Fluid Mech. 110, 73.Google Scholar
Gad-el-Hak, M., Davis, S. H., McMurray, J. T. & Orsag, S. A. 1984 On the stability of the decelerating laminar boundary layer. J. Fluid Mech. 138, 297.Google Scholar
Kama, F. R. 1959 Some transition patterns in axisymmetric boundary layers. Phys. Fluids 2, 664.Google Scholar
Hama, F. R. 1960 Boundary-layer transition induced by a vibrating ribbon on a flat plate. In Proc. 1960 Heat Transfer and Fluid Mechanics Institute, p. 92. Stanford University Press.
Hama, F. R., Long, J. D. & Hegarty, J. C. 1957 On transition from laminar to turbulent flow. J. Appl. Phys. 28, 388.Google Scholar
Hama, F. R. & Nutant, J. 1963 Detailed flow-field observations in the transition process in a thick boundary layer. In Proc. 1963 Heat Transfer and Fluid Mechanics Institute, p. 77. Stanford University Press.
Mueller, T. J. 1983 Flow visualization by direct injection. In Fluid Mechanics Measurements (ed. R. J. Goldstein), p. 307. Hemisphere.
Perry, A. E., Lim, T. T. & Teh, E. W. 1981 A visual study of turbulent spots. J. Fluid Mech. 104, 387.Google Scholar
Saric, W. S. & Thomas, A. S. W. 1984 Experiments on the subharmonic route to turbulence. In Turbulence and Chaotic Phenomena in Fluids. IUTAM (ed. T. Tatsumi), p. 117. Elsevier.