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

Date

2025-11-10

Author

Arslan, Mehmet
DURNA, AHMET SELİM

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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 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$18\%$$\end{document} increase in the maximum lift coefficient and reduced the stall angle from 10 to \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$8\circ$$\end{document}. A multiple actuator configuration consisting of seven electrode pairs produced a lift coefficient increase of at least \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$24\%$$\end{document} compared to the actuator off case, while the maximum lift coefficient was enhanced by \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$183\%$$\end{document}. This configuration also delayed stall by an additional \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$1\circ$$\end{document} and reduced pressure drag at deep stall angles by approximately \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$40\%$$\end{document}.

URI

https://hdl.handle.net/11511/116945

Collections

Department of Petroleum and Natural Gas Engineering, Article