Рубрики:
WEIS-FOGH MECHANISM
INSECT FLIGHT
LIFT GENERATION
HOVERING FLIGHT
AERODYNAMICS
VORTICES
DYNAMICS
VORTEX
WAKE
Кл.слова (ненормированные):
FLIGHT -- FLOW VISUALIZATION -- VORTEX WAKE -- LACEWING -- CHRYSOPA-DASYPTERA
WEIS-FOGH MECHANISM
INSECT FLIGHT
LIFT GENERATION
HOVERING FLIGHT
AERODYNAMICS
VORTICES
DYNAMICS
VORTEX
WAKE
Кл.слова (ненормированные):
FLIGHT -- FLOW VISUALIZATION -- VORTEX WAKE -- LACEWING -- CHRYSOPA-DASYPTERA
Аннотация: Experiments on dust visualization of the flow around tethered flying green lacewings showed that, contrary to expectations based on the Weis-Fogh clap-and-fling mechanism, a leading edge separation bubble does not exist near either fore- or hindwings. At the beginning of the stroke cycle each wing operates as an independent generator of vorticity. The vortex bubbles of all the four wings then unite, producing a single U-shaped bubble. A hypothetical spatial structure for the vortex wake is derived from a series of registrated sections of the wake illuminated with a flat light beam. Some problems of wing functional morphology and insect flight aerodynamics are also discussed.
Доп.точки доступа:
GRODNITSKY, D.L.; MOROZOV, P.P.