Analysis of Aerodynamic Characteristic of Vertical Axis Wind Turbine with Active Shunt Baffle

XIAO Yi; YE Zhou; YU Hao; LI Chun

doi:10.19805/j.cnki.jcspe.2025.240306

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Analysis of Aerodynamic Characteristic of Vertical Axis Wind Turbine with Active Shunt Baffle

更新时间：2026-10-10

- Analysis of Aerodynamic Characteristic of Vertical Axis Wind Turbine with Active Shunt Baffle
- Chinese Journal of Power Engineering Vol. 45, Issue 7, Pages: 1037-1044(2025)
- 作者机构：
  
  1. 上海理工大学能源与动力工程学院,上海,200093
  2. 上海市动力工程多相流动与传热重点实验室,上海,200093
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240306
  CLC：
- Online First：14 July 2025，
  
  Published：2025
- 稿件说明：
移动端阅览
肖奕,叶舟,余豪,李春. 主动式分流挡板垂直轴风力机气动特性分析动力工程学报, 2025, 45(7): 1037-1044 https://doi.

org/10.19805/j.cnki.jcspe.2025.240306
肖奕,叶舟,余豪,李春. 主动式分流挡板垂直轴风力机气动特性分析动力工程学报, 2025, 45(7): 1037-1044 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240306.

org/10.19805/j.cnki.jcspe.2025.240306 DOI：

摘要

为改善垂直轴风力机流动分离及效率较低等问题

提出了一种主动式分流挡板结构。以NACA0021为基础翼型

采用计算流体力学方法对分流挡板作用下垂直轴风力机叶片瞬时转矩、风能利用系数、平均切向力及压力场进行数值分析。结果表明:分流挡板结构可有效减弱叶片在迎风区范围内由于大攻角而引起的流动分离现象

同时升高叶片转矩

使垂直轴风力机在低叶尖速比下的风能利用系数得到不同程度的提升;挡板位于距叶片前缘0.50

(

为叶片弦长)

长度为0.15

及伸出高度为0.04

时

主动式分流挡板垂直轴风力机最高风能利用系数可达0.46

较原始垂直轴风力机提升9.5%。

Abstract

In order to improve the problems of flow separation and low efficiency of vertical axis wind turbines (VAWT)

an active shunt baffle (ASB) structure was proposed. Based on the NACA0021 airfoil

the instantaneous torque

wind energy utilization coefficient

average tangential force and pressure field of vertical axis wind turbine blades under the action of shunt baffle were numerically analyzed by computational hydrodynamic method. Results show that the shunt baffle structure can effectively weaken the flow separation phenomenon caused by the large angle of attack of the blade in the windward area

increase the torque of the blade

and improve the wind energy utilization coefficient of the vertical axis wind turbine in the range of low blade tip speed ratio to different degrees. When t

he baffle is located 0.50

from the leading edge of the blade (

is the chord length of the blade)

the length is 0.15

and the extension height is 0.04

the maximum wind energy utilization coefficient of the vertical axis wind turbine of the active shunt baffle can reach 0.46

which is 9.5% higher than that of the original vertical axis wind turbine.

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Keywords

references

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