| 水平轴风力机转轮气动性能的数值解法 |
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| 引用本文： | 程兆雪.水平轴风力机转轮气动性能的数值解法[J].兰州理工大学学报,1996(1). |
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| 作者姓名： | 程兆雪 |
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| 作者单位： | 甘肃工业大学水力机械工程系 |
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| 摘 要： | 以有限叶片数的旋涡气动模型为依据，用有限差分法求解描述该模型的积分微分方程，可建立一种确定水平轴风力机转轮气动性能的计算方法．该方法不只用于转轮气动正问题的求解，同时还可作为转轮气动优化设计的依据．本文先着重介绍了Ｈ．Ｅ．茹可夫斯基所提出的转轮旋涡气动模型和他所推导的求解诱导速度的表达式以及求环量分布的积分微分方程．之后，作者将积分方程已有的解法进行了改进，从而得到该方程的数值解，并提出两种求解转轮气动性能的数值解法．最后给出了转轮气动性能的几种算法的比较．
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| 关 键 词： | 风力发电机，气动特性，积分微分方程，旋涡气动模型，数值方法 |
Numerical method for determining aerodynamic characteristics of the rotor of HAWT |
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| Cheng Zhaoxcue.Numerical method for determining aerodynamic characteristics of the rotor of HAWT[J].Journal of Lanzhou University of Technology,1996(1). |
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| Authors: | Cheng Zhaoxcue |
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| Abstract: | Based on the vortex aerodynamic model of the rotor of HAWT presented earlierby russian scholar N. E. Joukowski and the expression of induced velocity derived from thismodel, a numeric method for determining aerodynamic characteristics of the rotor of HAWTis presented in this paper. After briefly explaining the features of the methods recently beingemployed for prediction of aerodynamic characteristics of the rotor of HAWT, it is emphasized to discuss the vortex aerodynamic model of the rotor advanced by russian scholar N. E.Joukowski and the integrodifferential equation defining velocity circulation from this model.Improving existing solution of typical integral equations, the solution to above mentioned integrodifferntial equation is derived, then, and two its numerical solving algorithms are developed, also. Finally, a comparison of aerodynamic characteristics of the rotor obtained fromdifferent methods is given at the end of this paper. |
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| Keywords: | wind turbine aerodynamic characteristics integrodifferential equations vortex aerodynamic model numerical methods |
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