叶轮外缘速度
Combined with the simulation results and the vertical axis of the impeller tip speed ratio theory, that is required to improve the transmission speed increasing ratio, in order to meet the project of Hydropower for water flow energy with low water speed.
结合仿真结果以及垂直轴叶轮叶尖速比的理论推导,表明需提高变速箱增速比,才能符合水流发电装置低水速运行的要求。
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