Analysis of flow separation control using nanosecond-pulse discharge plasma actuators on a flying wing    (Open Access)

作者：Li, Zheng; Shi, Zhiwei; Du, Hai; Sun, Qijie; Wei, Chenyao; Geng, Xi

来源：Plasma Science and Technology, 2018, 20(11): 115504.

DOI：10.1088/2058-6272/aacaf0

• Aerodynamic characteristics
• Dielectric barrier discharge plasmas
• Dielectric barrier discharges
• Flow control methods
• Flow field structure
• Flow separation control
• Flying wings
• nanosecond

Dielectric barrier discharge (DBD) plasma is one of most promising flow control method for its several advantages. The present work investigates the control authority of nanosecond pulse DBD plasma actuators on a flying wing model's aerodynamic characteristics. The aerodynamic forces and moments are studied by means of experiment and numerical simulation. The numerical simulation results are in good agreement with experiment results. Both results indicate that the NS-DBD plasma actuators have negligible effect on aerodynamic forces and moment at the angles of attack smaller than 16°. However, significant changes can be achieved with actuation when the model's angle of attack is larger than 16°where the flow separation occurs. The spatial flow field structure results from numerical simulation suggest that the volumetric heat produced by NS-DBD plasma actuator changes the local temperature and density and induces several vortex structures, which strengthen the mixing of the shear layer with the main flow and delay separation or even reattach the separated flow.

• 出版日期2018
• 单位南京航空航天大学