提出了Wilson法设计上游风轮，利用尾流模型得到下游风轮处轴向风速，代入Wilson法设计下游风轮的设计思路，完成3 kW 同半径同尖速比的对旋风力机设计。通过数值模拟与基于动量叶素理论及Glauert 修正方法的理论程序，对风力机上游风轮进行变转速性能验证，两者均显示在设计点风力机功率系数达到较高值，C FD结果0．455略低于程序结果0．563。对旋风力机数值模拟显示功率系数可达到0．501，较单级功率提高10．11％，设计点处两级风轮转速达到最佳匹配。%T his paper presents counter rota-ting wind turbine design method that uses Wilson method to design upwind turbine firstly ,gets axial velocity at downwind turbine’s position with wake model already studied ,finally inputs the velocity into Wilson method to design downwind turbine , and follows this approach to design a CRWT with equivalent tip speed ratio and equivalent radius of upwind and downwind turbines .FLUENT and pro-gram based on momentum blade element theory and Glauert correction method are carried out to verify designed for performance of upwind turbine alone ,at design point wind turbine reaches its peak power coefficient of 0 .455 in FLUENT and 0 .563 in program .CRWT ’ s power output increases 10.11% compared to single stage turbine ,with power coefficient of 0 .501 ,and obtains the best match of upwind and downwind turbines’ rotating speed at the design point .
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