Analysis of the experimental results of separation control with a dielectric barrier discharge plasma actuator over a NACA0015 airfoil and an Ishii airfoil, which is practical airfoil and gains better aerodynamic performance than NACA0015 airfoil at low Reynolds number, is conducted to investigate the relationship between the parameters (i.e. nondimensional burst frequency: F+, input voltage: Vpp, angle of attack: AoA) and the improvement of the aerodynamic performance. Time-averaged pressure distributions are measured at Reynolds number of 62,000 around the airfoils. In this study, scatter plot matrix (SPM) is used as the data mining technique to extract the correlation between parameters. Results indicate that for both NACA0015 and Ishii airfoils, F+ = 6 and 1 are effective for low and high AoA, respectively. Also SPM plots show that the pressure coefficient at the trailing edge and lift-to-drag ratio (L/D) are well related each other.
- Fluids Engineering Division
Data Mining of Experimental Data on Separation Control of the Flows Over NACA0015 and Ishii Airfoils Using Dielectric Barrier Discharge Plasma Actuator
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Asada, K, Sekimoto, S, Tatsukawa, T, Shimizu, T, Yabu, M, & Fujii, K. "Data Mining of Experimental Data on Separation Control of the Flows Over NACA0015 and Ishii Airfoils Using Dielectric Barrier Discharge Plasma Actuator." Proceedings of the ASME 2017 Fluids Engineering Division Summer Meeting. Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Gas and Liquid-Solid Two-Phase Flows; Numerical Methods for Multiphase Flow; Turbulent Flows: Issues and Perspectives; Flow Applications in Aerospace; Fluid Power; Bio-Inspired Fluid Mechanics; Flow Manipulation and Active Control; Fundamental Issues and Perspectives in Fluid Mechanics; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes. Waikoloa, Hawaii, USA. July 30–August 3, 2017. V01CT22A002. ASME. https://doi.org/10.1115/FEDSM2017-69060
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