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首页> 外文会议>International Symposium on Environment Friendly Energies and Applications >Improvement of the accuracy of the blade element momentum theory method in wind turbine aerodynamics analysis
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Improvement of the accuracy of the blade element momentum theory method in wind turbine aerodynamics analysis

机译：提高风力涡轮机空气动力学分析中叶片元件动量理论方法的准确性

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摘要

Blade element momentum theory (BEMT) is based on an iterative process in which the axial and rotational induction factors are determined within an iteration loop. In unsteady BEMT the effect of dynamic stall on the lift coefficient is taken into account. Normally, the effect of dynamic stall on the converged values for induction factors is neglected and correction to the lift coefficient is applied after obtaining induction factors, outside the iteration loop. In this paper it is shown that this can lead to inaccurate results. This paper also proposes a method for reducing the number of iterations significantly and therefore making the integration of dynamic stall inside the iteration loop efficient.
机译：刀片元件动量理论（BEMT）基于迭代过程，其中轴向和旋转诱导因子在迭代环内确定。在不稳定的BEMT中，考虑了动态失速对电梯系数的影响。通常，动态失速对诱导因子的融合值的融合值的影响被忽略并在获得迭代环之外施加对升力系数的校正。在本文中，表明这可能导致结果不准确。本文还提出了一种可显着降低迭代次数的方法，从而使得在迭代环高效内部的动态失速集成。

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