27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-3.1.2

EXPERIMENTAL STUDY ON FLOW INTERACTION BETWEEN FORE- AND HINDWINGS OF DRAGONFLY IN HOVERING AND FORWARD FLIGHT

H. Nagai, K. Isogai, T. Fujimoto
Nippon Bunri Univ., Japan

Keywords: flapping wing, unsteady aerodynamics, flow visualization, insect, dragonfly

We investigate the flow interaction between fore- and hindwings of a dragonfly in hovering and forward flight. Measurements of unsteady aerodynamic forces and flow visualization are conducted using a dynamically scaled mechanical model in a water tunnel. The flow interaction is related to the phase difference between fore- and hindwings.

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