The high pressure and low pressure rotors can rotate either in the same or opposite directions. Research about aerodynamicsofturbine with or without guide vanes are conducted.
它可以允许轴流式涡轮高低压转子对转或同向旋转，对有或无导叶涡轮进行气动方面的研究工作。
2
Based on the research of wind turbineaerodynamics characteristics, a model was established and the theoretical foundation of pitch control was built.
通过风力机空气动力学分析和模型研究，为变桨距控制提供了理论基础。
3
First, wind turbineaerodynamics and variable pitch control process was discussed to provide theoretical studying basis for studying of the system design and control strategy.