Scholarlink

<p>A two-dimensional numerical investigation was conducted to evaluate the effects of plasma actuators (PLA) on the aerodynamic performance of a Darrieus vertical-axis wind turbine (VAWT). In the present study, PLAs mounted on turbine blades are employed to control flow separation. First, the flow field around the turbine and the induced field produced by the PLA are numerically simulated and validated. The influences of applied voltage, electrode length, and position on the power curve and flow features are explored. The performance of the PLA under optimal conditions is then evaluated for rotors with two to five blades, and the corresponding power curves are obtained. The results indicate that for a three-bladed rotor, the optimal use of the PLA increases the average power coefficient from 0.241 to 0.447. Moreover, due to the significant effectiveness of the PLA at low tip-speed ratios, the operational stability of the turbine is improved, and the difference between the maximum and minimum power coefficients of the three-bladed rotor over the tip-speed ratio (TSR) range of 1.64 to 3.3 is reduced from 0.24 to 0.09<b>.</b></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Plasma-based flow control for performance enhancement of vertical-axis wind turbines

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月23日

查看全文
  • Mohammad Javad Zarei,
  • Somayeh Davoodabadi Farahani

摘要

A two-dimensional numerical investigation was conducted to evaluate the effects of plasma actuators (PLA) on the aerodynamic performance of a Darrieus vertical-axis wind turbine (VAWT). In the present study, PLAs mounted on turbine blades are employed to control flow separation. First, the flow field around the turbine and the induced field produced by the PLA are numerically simulated and validated. The influences of applied voltage, electrode length, and position on the power curve and flow features are explored. The performance of the PLA under optimal conditions is then evaluated for rotors with two to five blades, and the corresponding power curves are obtained. The results indicate that for a three-bladed rotor, the optimal use of the PLA increases the average power coefficient from 0.241 to 0.447. Moreover, due to the significant effectiveness of the PLA at low tip-speed ratios, the operational stability of the turbine is improved, and the difference between the maximum and minimum power coefficients of the three-bladed rotor over the tip-speed ratio (TSR) range of 1.64 to 3.3 is reduced from 0.24 to 0.09.