日本航空宇宙学会論文集
Online ISSN : 2432-3691
Print ISSN : 1344-6460
論文
低レイノルズ数域で作動するプロペラブレードの形状最適化
小木曽 望内海 智仁室津 義定
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2002 年 50 巻 586 号 p. 458-465

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This study is concerned with a shape optimum design of a propeller blade operating in a low Reynolds number range, 1.0–2.0×105. The objective is to minimize the power-required under the constraints on the thrust and the angle of attack in terms of chord length and twist angle distributions where the power-required is evaluated by 3-D panel method. The profile drag is also considered in the optimization, because the effect cannot be ignored in a low Reynolds number range. For calculation efficiency, the profile drag coefficient is approximated by higher order polynomials in terms of Reynolds number and angle of attack. The effectiveness of the proposed method is demonstrated by the design of a propeller blade of a human-powered aircraft. Additionally, effect of the profile drag is discussed by comparing the designs with and without considering the profile drag.

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© 2002 The Japan Society for Aeronautical and Space Sciences
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