1934 ヒービング運動する弾性翼に働く非定常推進力(S21-6 噴流,後流及びはく離流れの流動解析と応用(6),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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An unsteady flow in a low Reynolds number region attracts attention in recent years. The authors measured vortex flow in the wake of the elastic flat plate and elastic NACA0010 with heaving motions. Furthermore, we measured dynamic thrusts acting on these airfoils with heaving motions and clarified their relations with vortex flows. By giving an elasticity to the latter half of the flat plate, thrust-producing vortex streets same as those of the airfoils can be formed in the wake of the elastic flat plate with heaving motions. The dynamic thrusts that act on the elastic flat plate and elastic NACA0010 are strongly dependent on the Strouhal number based on the trailing edge amplitude regardless of heaving amplitudes, heaving frequencies, airfoil shapes and elastic deformations.
2008-08-02