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Experiments in Fluids

, Volume 8, Issue 1–2, pp 95–103 | Cite as

Starting flow and structures of the starting vortex behind bluff bodies with sharp edges

  • Q. -X. Lian
  • Z. Huang
Originals

Abstract

Experimental investigations were made in a water channel on the starting flow around several bluff bodies with sharp edges: flat plates, circular disks and hollow hemispheres. Details of the flow structures were visualized using the hydrogen bubble technique. Three-fold structures of the starting vortex behind flat plates were observed. The shedding of the vortex sheet from the edge was also studied.

Keywords

Hydrogen Vortex Fluid Dynamics Experimental Investigation Flow Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Auerbach, D. 1987: Experiments on trajectory and circulation of the starting vortex. J. Fluid Mech. 183, 185–198Google Scholar
  2. Blondeaux, P.; Bernadinis, B. 1983: On the formation of vortex pairs near orifices. J. Fluid Mech. 135, 111–122Google Scholar
  3. Didden, N. 1979: On formation of vortex rings: rolling-up and production of circulation. Z. Angew. Math. Phys. 30, 101–115Google Scholar
  4. Finaish, F.; Freymuth, P.; Bank, W. 1986: Starting flow over spoilers, double steps and cavities. J. Fluid Mech. 186, 383–392Google Scholar
  5. Freymuth, P. 1985: The vortex patterns of dynamic separation, a parametric and comparative study. Prog. Aerosp. Sci. 22, 161–208CrossRefGoogle Scholar
  6. Ibrahim, S. K. 1967: Potential flow field and added mass of idealized hemi-spherical parachute. J. Aircraft 4, 96–100Google Scholar
  7. Lian, Q. X. 1984: The starting flow around the circular disks. Acta Aeronaut. Sin. 5, 384–390Google Scholar
  8. Phillips, W. R. C. 1981: The turbulent trailing vortex during roll-up. J. Fluid Mech. 105, 451–467zbMATHGoogle Scholar
  9. Pierce, D. 1961: Photographic evidence of the formation and growth of vorticity behind plates accelerated from rest in still air. J. Fluid Mech. 11, 460–464zbMATHGoogle Scholar
  10. Pullin, D. I. 1978: The large-scale structure of unsteady self-similar rolled-up vortex sheets. J. Fluid Mech. 88, 401–430zbMATHMathSciNetGoogle Scholar
  11. Pullin, D. I.; Perry, A. E. 1980: Some flow visualization experiments on the starting vortex. J. Fluid Mech. 97, 239–255Google Scholar
  12. Rott, N. 1956: Diffraction of a weak shock with vortex generation. J. Fluid Mech. 1, 111–282zbMATHMathSciNetGoogle Scholar

Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • Q. -X. Lian
    • 1
  • Z. Huang
    • 1
  1. 1.Institute of Fluid Mechanics, Beijing Institute of Aeronautics and AstronauticsBeijingP.R. China

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