トンボの翅の三次元構造とトンボまわりのPIV計測(流体工学,流体機械)

概要

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In the present paper, studies of dragonfly wing revealed the structural morphology and the aerodynamic characteristics. Some experimental studies on dragonfly wings were performed with a scanning electron micrograph, a three-dimensional curved shape measuring system and a Particle Image Velocimetry (PIV) system. Firstly, the scanning electron micrograph observed the cross section shape of a dragonfly wing. Secondly, the system for the measurement of surface shape measured the surface roughness of a dragonfly wing with μm order accuracy. The results of surface shape mesurement revealed there are three regions on a dragonfly wing, which had different function for a wing. Lastly, the PIV system measured the flow characteristics around the dragonfly wing and the flapping dragonfly. The analysis of two-dimensional velocity fields with the PIV system clarified the existence of the large velocity areas over a dragonfly wing and the specific flows around a flapping dragonfly.
一般社団法人日本機械学会の論文
2002-12-25