Journal of the Visualization Society of Japan
Online ISSN : 1884-037X
Print ISSN : 0916-4731
ISSN-L : 0916-4731
Experimental Study of Beating Motion of Mosquito by Using an Enlarged Model of Wing.
Symmetry of leading edge vortex on a plate wing during heaving motion
Daisuke KONDOTsutomu TAJIKAWAAtsushi SAKURAIKenkichi OHBA
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2004 Volume 24 Issue Supplement1 Pages 357-358

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Abstract
The purpose of this study is to investigate flow pattern around mosquito's wing while it is beating. We constructed on experimental apparatus to simulate beating motion of mosquito. An enlarged scale model experiment was carried out using a very low speed wind tunnel under the condition that Reynolds number and Strouhal number were made equal to those of real mosquito. The flow around the wing model moving up and down was visualized using smoke and laser light sheet and it was analyzed by a PIV system. Unsteady vortices were observed to be generated on the upper surface of the model wing in the period of downstroke. We compared the vortices each other on three different kinds of enlarged scale models (8, 10, 12.5 times). As a result of Reynolds number and Strohal number are corresponded and attached wing symmetry, the flow around the wing corresponded indeoendently of the enlarged scale.
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