NACA44系翼を用いたプロペラ型風車の空力特性 : ねじりピッチ角による影響とスロットを付けた場合(新エネルギー(2),空気調和・冷凍・エネルギー有効利用技術)

概要

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Aerodynamic performance characteristics of the propeller type of HAWT were investigated theoretically by the combination analysis of momentum, energy, and blade element theory, and experimentally by a subscale model. In this study, three different types of blades with NACA44 aerofoil and slot arrangement were examined by a subscale experiments and numerical results under the condition of open typed wind tunnels with wind stream 0.8〜4.5 m/s, i.e., tapered rectangular blade with different twist pitch angle and with slot arrangement. The obtained aeronautical characteristics by experiment and analysis employing the three different blades were discussed by reference to power and torque coefficients C_p, C_q and tip speed ratio λ, and with regard to starting or acceleration dynamic characteristics..
社団法人日本機械学会の論文
2004-07-11