- Abstract:
-
Here we show, by qualitative free- and tethered-flight flow visualization, that dragonflies fly by using unsteady aerodynamic mechanisms to generate high-lift, leading-edge vortices. In normal free flight, dragonflies use counterstroking kinematics, with a leading-edge vortex (LEV) on the forewing downstroke, attached flow on the forewing upstroke, and attached flow on the hindwing throughout. Accelerating dragonflies switch to in-phase wing-beats with highly separated downstroke flows, with ...
Expand abstract - Publication status:
- Published
- Journal:
- The Journal of experimental biology
- Volume:
- 207
- Issue:
- Pt 24
- Pages:
- 4299-4323
- Publication date:
- 2004-11-05
- DOI:
- EISSN:
-
1477-9145
- ISSN:
-
0022-0949
- URN:
-
uuid:79d8496d-5edb-43bb-87fe-c5100fb69599
- Source identifiers:
-
209199
- Local pid:
- pubs:209199
- Language:
- English
- Keywords:
- Copyright date:
- 2004
Journal article
Dragonfly flight: free-flight and tethered flow visualizations reveal a diverse array of unsteady lift-generating mechanisms, controlled primarily via angle of attack.
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