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Keywords: leading edge vortex
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Journal Articles
J Exp Biol (2020) 223 (15): jeb221499.
Published: 13 August 2020
... from cylinder to upward-opening cone produces downward flow into the gap between the wings, a leading edge vortex ring and a corresponding sharp increase in swimming speed. The ability of this pteropod species to perform the cylindrical overlap-and-fling maneuver twice during each stroke is enabled by...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (22): jeb179259.
Published: 19 November 2018
... moths also display reduced-order dynamics in wind compared with still air. Smoke visualization of the flower wake shows that the dominant vortex shedding corresponds to the same frequency band as the increased overshoot. Despite these large effects on tracking dynamics in wind, the leading edge vortex...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (19): jeb171199.
Published: 04 October 2018
... vary across four spanwise regions. (i) Close to the wing root, a trailing-edge vortex (TEV) is formed by each stroke, while the formation of a leading-edge vortex (LEV) is limited by the short translational distance of the hindwing and suppressed by the forewing-induced flow. (ii) In the region away...
Includes: Supplementary data
Journal Articles
J Exp Biol (2010) 213 (11): 1930–1939.
Published: 01 June 2010
... 2010 © 2010. 2010 leading edge vortex bird flight delayed stall Studies of animal flight have attained a new level of detail over the last decade, due to a tremendous progress in measurement techniques and heightened interest in flapping flight among the academic, military and...
Journal Articles
J Exp Biol (2009) 212 (16): 2705–2719.
Published: 15 August 2009
...David Lentink; Michael H. Dickinson SUMMARY The aerodynamic performance of hovering insects is largely explained by the presence of a stably attached leading edge vortex (LEV) on top of their wings. Although LEVs have been visualized on real, physically modeled, and simulated insects, the physical...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2004) 207 (26): 4707–4726.
Published: 15 December 2004
... fore- and hindwing stroke cycles we found that the performance of the forewing remains approximately constant, while hindwing lift production may vary by a factor of two. Hindwing lift modulation appears to be due to two different fluid dynamic phenomenons: leading edge vortex destruction and changes...
Journal Articles
J Exp Biol (2004) 207 (24): 4299–4323.
Published: 15 November 2004
... 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 a...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2003) 206 (23): 4191–4208.
Published: 01 December 2003
... that the fluid dynamic phenomena underlying flapping flight are different from those of non-flapping,2-D wings on which most previous models were based. In particular, even at high angles of attack, a prominent leading edge vortex remains stably attached on the insect wing and does not shed into an...