NACA44系, LS04系, NACA64-415翼型ブレードを用いたプロペラ型風力の空力特性

抄録

The Aerodynamic performance characteristics of a horizontal axis wind turbine (HAWT) using by NACA4415, LSO417, and NACA64-415 aerofoils were investigated theoretically by the combination analysis involving momentum, energy, and blade element theory by means of the strip element method, based on the detail date of C_L, C_D characteristics of the employed blades analyzed by the soft of Java Foil, and experimentally by the use of a subscale model. The characteristics of HAWT employed the three types of aerofoil blades for the different dimensions of the blades such as blade dia.D and number Z, chord length ι, twist pitch angle θ, and for large scale units are discussed and cleared as a parameter of the dimensionless number of the solidity S, particularly in regard to the passive pitch controlled system for a blast of wind and the over speed run of blades, by reference to the power, torque and thrust coefficient, C_p, C_q, C_T, and the tip speed ratio λ, from the point of view of the optimum design.