B322 迎え角を考慮した垂直軸直線翼風車まわりの流れの数値計算

概要

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In this study, complex flow fields around the straight. Darius turbine of four blades rotating stationally are simulated by solving the two dimensional incompressible Navier-Stokes equation numerically in order to investigate the effect of the attack angle of the blade on the power coefficents and to obtain fundamental data for the purpose of the design. Rotating coordinate system is employed. Since the boundary condition are imposed precisely on the blades, the boundary fitted coordinate system is employed. Fractional step method is used to solve the basie equations. The torque and power coefficients are also computed. Moreover, the new turbine which is the combination of the straight. Darius turbine and cross-flow turbine of 12 blades is proposed and the flow field around it is computed.
日本流体力学会の論文
2002-07-23