publication . Article . 2016

Feather Vibration as a Stimulus for Sensing Incipient Separation in Falcon Diving Flight

Christoph Brücker; Daniel Schlegel; Michael Triep;
Open Access English
  • Published: 01 Jan 2016
  • Country: United Kingdom
Abstract
Based on our preceding studies on the aerodynamics of a falcoperegrinus in diving flight along a vertical dam it is known that even when the body shape of the bird is rather streamlined in V-shape some feathers tips may elevate in certain regions of the body. These regions were identified in wind tunnel tests for typical diving flight conditions as regions of locally separated flow. A life-size model in V-shape of a falcoperegrinus with artificial feathers fixed along the body was studied in a wind tunnel to focus on the fluid-structure interaction of feathers located in this sector. The distal ends of the feathers show flow-induced vibrations at typical flight ...
Subjects
free text keywords: TJ, Wind tunnel, Aerodynamics, Geology, Acoustics, Flow visualization, Airfoil, Flow (psychology), Anatomy, Feather, visual_art.visual_art_medium, visual_art, Flow separation, Vibration
Related Organizations
19 references, page 1 of 2

Alerstam, T. (1987) Radar Observations of the Stoop of the Peregrine Falcon Falco peregrinus and the Goshawk Accipiter gentilis. Short Communications, 129, 267-273.

Seitz, K. (1999) Vertical Flight. NAFA Journal, 38, 68-72.

Ratcliffe, D.A. (1980) The Peregrine Falcon. Vermillon, Buteo Books.

Hustler, K. (1983) Breeding Biology of the Peregrine Falcon in Zimbabwe. Ostrich, 54, 161-171.

http://dx.doi.org/10.1080/00306525.1983.9634466

Tucker, V.A. (1990) Body Drag, Feather Drag and Interference Drag of the Mounting Strut in a Peregrine Falcon, Falco peregrinus. Journal Experimental Biology, 149, 449-468.

Tucker, V.A. (1998) Gliding Flight: Speed and Acceleration of Ideal Falcons during Diving and Pull Out. Journal Experimental Biology, 201, 403-414.

Ponitz, B., Schmitz, A., Fischer, D., Bleckmann, H. and Brücker, C. (2014) Diving-Flight Aerodynamics of a Peregrine Falcon (Falco peregrinus), PLoS One, 9, e86506. http://dx.doi.org/10.1371/journal.pone.0086506 Nachtigall, W. (1984) Vogelflugforschung in Deutschland. Journal fürOrnithologie, 125, 157-187. [OpenAIRE]

http://dx.doi.org/10.1007/BF01640586

Hoerster, W. (1990) Histological and Electrophysiological Investigations on the Vibration-sensitive Receptors (Herbst corpuscles) in the Wing of the Pigeon (Columba livia). Journal of Comparative Physiology A, 166, 663-673.

[10] Hoerster, W. (1990) Vibrational Sensitivity of the Wing of the Pigeon (Columba livia)-A Study Using Heart Rate Conditioning. Journal of Comparative Physiology A, 167, 545-549.

[11] Shen, Y. (1983) A Behavioral Study of Vibrational Sensitivity in the Pigeon (Columba livia). Journal of Comparative Physiology, 152, 251-255. http://dx.doi.org/10.1007/BF00611189

[12] Brown, R.E. and Fedde, M.R. (1993) Airflow Sensors in the Avian Wing. Journal Experimental Biology, 179, 13-30.

[13] Rüppell, G. (1980) Technik des Vogelfluges-D 1368. Institut für den wissenschaftlichen Film, Göttingen. [OpenAIRE]

[14] Schmitz, A., Ponitz, B., Brücker, C., Schmitz, H., Herweg, J. and Bleckmann, H. (2015) Morphological Properties of the Last Primaries, the Tail Feathers, and the Alulae of Accipiter nisus, Columba livia, Falco peregrinus, and Falco tinnunculus. Journal of Morphology, 276, 33-46. http://dx.doi.org/10.1002/jmor.20317 [OpenAIRE]

19 references, page 1 of 2
Powered by OpenAIRE Research Graph
Any information missing or wrong?Report an Issue