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振動翼推進機構の研究 : 第2報, 二次元対称翼を用いた場合
Study on an Oscillating Wing Propulsion Mechanism : 2nd Report, Case of Two-Dimensional Symmetry Wing
永井, 實
照屋, 功
中井, 哲朗
Nagai, Minoru
Teruya, Isao
Nakai, Tetsurou
Fluid Dynamics
Swimming Motion
Propulsion Mechanism
Oscillating Wing
Wing Profi
Among aquatic animals, tuna, mackerel and dolphin seem to have achieved a high-speed and high-efficiency swimming method. Their measured speeds are sometimes higher than those of the theoretical estimations. We investigate the propulsion mechanism by modeling their caudal fin movement as a simple mechanism of two hinges, a rigid caudal arm and a rigid wing. The mechanism enables simultaneous wing heaving and pitching motions. In this study we determine the most effective motion of the wing in the case of an NACA 0015 wing section profile. The calculation result showed that the wing profile was much more effective than a flat plate wing profile. Furthermore, we present an analysis of the behavior of characteristic quantities of oscillating wing mechanism at large swimming number.
論文
http://purl.org/coar/resource_type/c_6501
日本機械学会
1996-12-25
VoR
http://hdl.handle.net/20.500.12000/234
03875016
AN00187441
日本機械学会論文集. B編
Transactions of the Japan Society of Mechanical Engineers. B
604
62
120
113
jpn
open access
Copyright (c) 1996 日本機械学会