Scholarlink

<p>The growing interest in unmanned air vehicles necessitates effective flow control techniques for the low Reynolds number regime. While Dielectric Barrier Discharge (DBD) plasma actuators offer a promising solution, the current understanding of their use in this regime is limited and less comprehensive, as most research has focused on higher Reynolds numbers. This study numerically investigates the flow control potential of DBD plasma actuators on an airfoil at a low Reynolds number, focusing on both single and multiple actuator configurations. For a single actuator, positioning near the trailing edge resulted in an approximately <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(18\%\)</EquationSource> </InlineEquation> increase in the maximum lift coefficient and reduced the stall angle from 10 to <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(8^\circ\)</EquationSource> </InlineEquation>. A multiple actuator configuration consisting of seven electrode pairs produced a lift coefficient increase of at least <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(24\%\)</EquationSource> </InlineEquation> compared to the actuator off case, while the maximum lift coefficient was enhanced by <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(183\%\)</EquationSource> </InlineEquation>. This configuration also delayed stall by an additional <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(1^\circ\)</EquationSource> </InlineEquation> and reduced pressure drag at deep stall angles by approximately <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(40\%\)</EquationSource> </InlineEquation>.</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

Numerical investigation of single and multiple DBD plasma actuators integration on airfoils at low Reynolds number

  • 期刊论文

  • 发表日期：

    2025年11月10日

查看全文
  • Mehmet Arslan,
  • Ahmet Selim Durna

摘要

The growing interest in unmanned air vehicles necessitates effective flow control techniques for the low Reynolds number regime. While Dielectric Barrier Discharge (DBD) plasma actuators offer a promising solution, the current understanding of their use in this regime is limited and less comprehensive, as most research has focused on higher Reynolds numbers. This study numerically investigates the flow control potential of DBD plasma actuators on an airfoil at a low Reynolds number, focusing on both single and multiple actuator configurations. For a single actuator, positioning near the trailing edge resulted in an approximately \(18\%\) increase in the maximum lift coefficient and reduced the stall angle from 10 to \(8^\circ\) . A multiple actuator configuration consisting of seven electrode pairs produced a lift coefficient increase of at least \(24\%\) compared to the actuator off case, while the maximum lift coefficient was enhanced by \(183\%\) . This configuration also delayed stall by an additional \(1^\circ\) and reduced pressure drag at deep stall angles by approximately \(40\%\) .