Vortex wake and flight kinematics of a swift in cruising flight in a wind tunnel.

  title={Vortex wake and flight kinematics of a swift in cruising flight in a wind tunnel.},
  author={Per Henningsson and G R Spedding and Anders Hedenstr{\"o}m},
  journal={The Journal of experimental biology},
  volume={211 Pt 5},
In this paper we describe the flight characteristics of a swift (Apus apus) in cruising flight at three different flight speeds (8.0, 8.4 and 9.2 m s(-1)) in a low turbulence wind tunnel. The wingbeat kinematics were recorded by high-speed filming and the wake of the bird was visualized by digital particle image velocimetry (DPIV). Certain flight characteristics of the swift differ from those of previously studied species. As the flight speed increases, the angular velocity of the wingbeat… CONTINUE READING

From This Paper

Figures, tables, and topics from this paper.
33 Citations
52 References
Similar Papers


Publications citing this paper.
Showing 1-10 of 33 extracted citations


Publications referenced by this paper.
Showing 1-10 of 52 references

Power requirements for largeamplitude flapping flight

  • K. C. Hall, S. A. Pigott, S. R. Hall
  • AIAA 1997-0827,
  • 1997
Highly Influential
6 Excerpts

Vortex wakes of birds: recent developments using digital particle image velocimetry in a wind tunnel

  • A. Hedenström, L. van Griethuijsen, M. Rosén, G. R. Spedding
  • Anim. Biol
  • 2006
Highly Influential
10 Excerpts

Quantitative studies of the wakes of freely flying birds in a low-turbulence wind tunnel

  • G. R. Spedding, A. Hedenström, M. Rosén
  • Exp. Fluids
  • 2003
Highly Influential
10 Excerpts

Wing kinematics of avian flight across speeds

  • B. W. Tobalske, T. L. Hedrick, A. A. Biewener
  • J. Avian Biol
  • 2003
Highly Influential
5 Excerpts

An unsteady lifting line theory of flapping wings with application to the forward flight of birds

  • P. J. Phlips, R. A. East, N. H. Pratt
  • J. Fluid Mech
  • 1981
Highly Influential
6 Excerpts

upstroke function with flight speed in bats

  • M. Rosén, A. Hedenström
  • Nature 321,
  • 2001
Highly Influential
2 Excerpts

Similar Papers

Loading similar papers…