出口圆弧半径对低风速风能汇聚影响规律研究
Effect of Outlet Structures on Accelerating Performance for the Low-Speed Wind
DOI: 10.12677/MOS.2021.104095, PDF,    国家自然科学基金支持
作者: 汪依文, 王 威, 杜宗钢：华中科技大学中欧清洁与可再生能源学院，湖北 武汉；叶建军*：华中科技大学中欧清洁与可再生能源学院，湖北 武汉；；蒋鹏程：华中科技大学能源与动力工程学院，湖北 武汉
关键词: 低风速风能；风能汇聚；聚风装置；出口结构；流场特性；Low-Speed Wind； Convergence of Wind Energy； Wind-Gathering Duct； Outlet Structure； Characteristics of the Flow Field
摘要: 聚风装置的结构参数直接影响聚风型风力发电机的输出功率。为了提高聚风装置的聚风特性，本文重点考察低风速来流风下出口结构参数对聚风效率的影响规律，通过对直线型出口和五种不同圆弧型出口聚风模型进行数值仿真计算，对装置内部的流场分布特性进行分析和比较。结果表明，圆弧型出口聚风装置的聚风性能优于直线型出口聚风装置，圆弧型线能够有效改善扩张出口的流动分离现象，提高喉口段的风速，从而使风力发电机能获取更多风能，提高输出功率。
Abstract: The structural parameters of the wind gathering duct directly affect the output power of the shrouded wind turbine. In order to improve the accelerating characteristics of the wind-gathering duct, this paper researches on the effect of the structure parameters of the outlet under the low-grade incoming wind on the wind gathering efficiency. Numerical simulations are carried out on the wind gathering duct with curved sectional outlet and five models with curved tubular structure, and the distribution characteristics of the flow field inside the duct are analyzed and compared. The wind-gathering duct with curved tubular structure can effectively improve the flow separation phenomenon at the outlet, which leads to the higher wind speed in the throat. Meanwhile, the wind turbine can obtain more wind energy and increase the output power.
文章引用：汪依文, 叶建军, 王威, 杜宗钢, 蒋鹏程. 出口圆弧半径对低风速风能汇聚影响规律研究[J]. 建模与仿真, 2021, 10(4): 955-961. https://doi.org/10.12677/MOS.2021.104095

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