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串列风力机尾流干扰的研究

DOI: 10.6052/1000-0879-13-163

Keywords: 风力机,广义致动盘方法,计算流体力学,尾流,功率

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Abstract:

广义致动盘方法是通过引入体积力代替叶片的致动盘技术与三维Navier-Stokes方程相结合来获得风力机周围流场信息的一种方法.该方法避免了花费大量网格与计算资源去求解风力机叶片的附面层,从而可以把更多的网格与计算资源用于风力机尾流流场的模拟,非常适合用于风力机尾流流场的研究.以NH1500风力机为计算模型,将常规CFD(computationalfluiddynamics)方法与广义致动盘方法计算所得的叶片载荷分布进行比较,以验证广义致动盘方法的可行性.然后使用广义致动盘方法对风场中串列风力机进行数值模拟,研究串列风力机之间间距变化时,上游风力机产生的尾流对下游风力机的干扰影响.

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