S0504-5-6 弾性を持つヒービング運動翼に働く非定常推進力特性(噴流,後流および剥離流れの流動解析と応用(その5))

概要

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A flow field around an elastic body is treated as a coupled problem of a fluid and a structure and it has been studied mainly by numerical analyses so far. Especially, the flow field around the elastic body in a low Reynolds number region has attracted attention. The purpose of the present study is to clarify the characteristics of dynamic thrust of heaving elastic airfoils, such as elastic flat plate, elastic NACA0010 and elastic NACA0020. The dynamic thrust that act on the rigid NACA0010, elastic flat plate, elastic NACA0010 and elastic NACA0020 are strongly dependent on the Strouhal number based on the trailing edge amplitude regardless of heaving amplitudes, heaving frequencies, airfoil shapes and elastic deformations. The maximum thrust efficiency of elastic NACA0010 was 25 % and was much higher than that of the rigid NACA0010.
社団法人日本機械学会の論文
2009-09-12