| 双叉式叶尖结构对风力机流场特性影响的数值模拟 |
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| 引用本文： | 代元军,翟明成,贺凯.双叉式叶尖结构对风力机流场特性影响的数值模拟[J].科学技术与工程,2021,21(5):1826-1831. |
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| 作者姓名： | 代元军 翟明成 贺凯 |
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| 作者单位： | 新疆农业大学机电工程学院,乌鲁木齐830052;上海电机学院机械学院,上海201306;新疆工程学院能源高效利用技术重点实验室,乌鲁木齐830091;新疆农业大学机电工程学院,乌鲁木齐830052;新疆工程学院能源高效利用技术重点实验室,乌鲁木齐830091 |
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| 基金项目： | 国家自然科学(51966018,51466015)；新疆维吾尔自治区天山英才项目(2018xgytsyc2-1-5) |
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| 摘 要： | 以波音737MAX机翼的双叉式叶尖结构为风力机叶尖改型设计思路,设计出双叉式叶尖结构风力机,利用计算流体力学(computational fluid dynamics,CFD)进行数值计算.结果 表明:双叉式叶尖结构风力机叶片压力差、叶尖线速度小于未改型风力机叶片,但上叉与下叉压力差总和大于未改型风力机叶片,增大了双叉式叶尖结构风力机总输出功率,主要影响因素为叶尖开叉角度.通过风洞实验验证了数值模拟的合理性,实验和数值模拟表明双叉式叶尖结构风力机尾迹轴向速度损失小于未改型风力机.
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| 关 键 词： | 风力机 流场 双叉式叶尖结构 数值模拟 |
| 收稿时间： | 2020/2/15 0:00:00 |
| 修稿时间： | 2020/6/4 0:00:00 |
Numerical simulation of the influence of double fork tip structure on the flow field characteristics of a wind turbine |
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| Dai Yuanjun,Zhai Mingcheng,He Kai.Numerical simulation of the influence of double fork tip structure on the flow field characteristics of a wind turbine[J].Science Technology and Engineering,2021,21(5):1826-1831. |
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| Authors: | Dai Yuanjun Zhai Mingcheng He Kai |
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| Institution: | College of Mechanical and Electrical Engineering,Xinjiang Agricultural University;Key Laboratory of Energy Efficient Utilization Technology,Xinjiang Institute of Engineering,College of Mechanical and Electrical Engineering,Xinjiang Agricultural University,College of Mechanical and Electrical Engineering,Xinjiang Agricultural University |
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| Abstract: | To Boeing 737 Max double fork type blade tip of the wing structure for wind turbine blade tip retrofit design thinking, design the structure of double fork type blade tip wind machine, using CFD numerical calculation, the result is a double fork type blade tip structure wind turbine blade tip linear velocity is smaller than not retrofit of a pressure difference, wind turbine blades, but on the fork fork under pressure and poor sum is greater than no retrofit wind turbine blade, double fork type blade tip structure increases the total output power of wind machine, the main influence factors for the blade tip split Angle theta. The wind tunnel experiment verifies the rationality of the numerical simulation, and the experimental and numerical simulation results show that the wake axial velocity loss of the wind turbine with double fork blade tip structure on the surface is less than that of the wind turbine without modification. |
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| Keywords: | wind turbine flow field double fork blade tip structure numerical simulation |
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