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首页> 外文期刊>Renewable energy >Design, analysis and test of a model turbine blade for a wave basin test of floating wind turbines.
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Design, analysis and test of a model turbine blade for a wave basin test of floating wind turbines.

机译：设计，分析和测试用于浮动式风力涡轮机的水盆测试的模型涡轮机叶片。

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摘要

Froude scaling is a generally reliable way to design models of floating wind turbines for wave basin testing. However, the resulting rotor thrust of the model is far lower than the Froude-scaled value of a full-size turbine, because the reduction in Reynolds number decreases the lift coefficients and increases the drag coefficients (the Reynolds number scaling effect). A 1/50th scale model wind turbine based on a NREL-5MW reference turbine is examined here. To mitigate the Reynolds number scaling effect in the model, the original aerofoils of the reference turbine (DU series and NACA 64-618) were replaced by an aerofoil at a low Reynolds number (NACA 4412). Such a model with aerofoil-adjusted blades was used in the mathematical optimization of rotor thrust. The design objective was to guarantee that while the rotor thrust of the model equalled the Froude-scaled rotor thrust of the reference, the smallest chord lengths were achieved, considering the weight control in building the model blade. The distribution of chord lengths fitted a fourth-order polynomial curve, and the distribution of twist angles along the blade fitted a second-order polynomial curve. The eight coefficients of the two curves were chosen as optimization variables, and pattern search method was used to solve the optimization model. The model blade was designed at zero pitch angle and further tested in FAST, a fully coupled simulation tool. A model test was conducted using the optimized blade geometry in the State Key Laboratory of Ocean Engineering in Shanghai, China, and the thrusts were compared with the predicted values. (C) 2016 Elsevier Ltd. All rights reserved.
机译：浮标缩放是设计用于波盆测试的浮动风力涡轮机模型的通常可靠的方法。但是，模型产生的转子推力远低于全尺寸涡轮机的弗洛德标度值，因为雷诺数的减少会减小升力系数并增加阻力系数（雷诺数缩放效应）。本文研究了基于NREL-5MW参考涡轮的1/50比例模型风力涡轮机。为了减轻模型中的雷诺数缩放效应，参考涡轮的原始翼型（DU系列和NACA 64-618）被低雷诺数的翼型（NACA 4412）代替。这种带有翼型调整叶片的模型被用于转子推力的数学优化。设计目标是确保模型的转子推力等于参考的Froude比例转子推力时，考虑到构建模型叶片时的重量控制，可以实现最小的弦长。弦长的分布符合四阶多项式曲线，而沿叶片的扭转角分布符合二阶多项式曲线。选择两条曲线的八个系数作为优化变量，并采用模式搜索法求解优化模型。模型叶片设计为零螺距角，并在完全耦合的仿真工具FAST中进行了进一步测试。在中国上海海洋工程国家重点实验室，使用优化的叶片几何形状进行了模型测试，并将推力与预测值进行了比较。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Renewable energy》 |2016年第11期|414-421|共8页
  • 作者

    Du Weikang; Zhao Yongsheng; He Yanping; Liu Yadong;

  • 作者单位

    Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Ruth Mulan Chu Chao Bldg,800 Dongchuan Rd, Shanghai, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Ruth Mulan Chu Chao Bldg,800 Dongchuan Rd, Shanghai, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Ruth Mulan Chu Chao Bldg,800 Dongchuan Rd, Shanghai, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Ruth Mulan Chu Chao Bldg,800 Dongchuan Rd, Shanghai, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Floating wind turbine; Wave basin test; Reynolds number scaling effect; Rotor thrust; Blade design;

    机译：浮式风力涡轮机;波盆试验;雷诺数缩放效应;转子推力;叶片设计;

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