Based on the traditional Momentum-Blade Element theory, an improved method of aerodynamic calculation about the horizontal axis wind turbine in yaw or in pitch-up is presented in this paper.

本文将动量-叶素理论推广应用于计算水平轴风车叶轮有侧偏角或上仰角时的气动力。

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Based on the blade element-momentum theory, this paper studied the aerodynamic performance prediction model for small wind turbines.

基于叶素动量理论分析了小型风力机的气动性能分析模型，并提出了叶片的气动优化设计方法。

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The approach of blade-element theory is opposite that of momentum theory since it is concerned with the forces produced by the blades as a result of the motion of the fluid.

叶片元素理论的方法与动量原理的方法相反，因为它关注的是由流体运动导致叶片产生的力。

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