Plasma-based Control of Crossflow Instability
K. (Kaisheng) Peng
Doctoral Candidate
Dr. F. (Francesco) Avallone
Assistant Professor
Dr. M. (Marios) Kotsonis
Associate Professor
In general, this project is focused on the study of plasma actuator (PA) effects on crossflow instabilities (CFI). Usually, modern aircraft wings are typically placed at a swept angle, producing the so-called CF component in the boundary layer. This component gives rise to CF instabilities which lead to laminar-turbulence transition and consequently produce considerable skin friction. In order to depress the CF instabilities and stabilize the boundary layer, PAs show a promising application in flow control. Compared with these conventional methods, PAs have obvious advantages such as low power consumption, fast response and no moving parts. Unfortunately, until now, there is still a lack of knowledge about PA effects on CF instabilities.
To understand the PA effects on CFI and to achieve transition delay, the project focuses on experimental investigations on each instability developing stage, including receptivity, primary CFI and secondary CFI combined with PAs. Once the mechanism of PAs on CFI is clear, new PAs for better controlling could be designed and optimized. Finally, comprehensive control concepts will be implemented with optimized PAs to demonstrate transition delay.
Cross-flow instabilities under plasma actuation: Design, commissioning and preliminary results of a new experimental facility AIAA 2021-1194. AIAA Scitech 2021 Forum
Kaisheng Peng majored in Electrical Engineering at the Southwest Jiaotong University in China and was awarded the matser’s degree there. He is enthusiastic about the plasma actuators and its application on flow control. In 2018, he was granted with Chinese Government Scholarship to continue his PhD study in Delft University of Technology. His current work is studying the transition delay on swept wing with plasma actuators.
Francesco Avallone studied Aerospace Engineering at the University of Naples Federico II where he obtained also the PhD. His research interest focus on application of computational aeroacoustics to investigate the noise generation mechanisms and noise reduction solutions for wind energy and aeronautical applications. He is currently working on acoustic liners, porous materials and urban wind turbines on projects sponsored by Clean Sky 2, NWO and AARC.
Mario
