标题：
Analysis of flow separation control using nanosecond-pulse discharge plasma actuators on a flying wing
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所属单位：
航空学院
发表刊物：
PLASMA SCIENCE & TECHNOLOGY
关键字：
nanosecond dielectric barrier discharge flying wing aircraft flow separation control
摘要：
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 degrees. However, significant changes can be achieved with actuation when the model's angle of attack is larger than 16 degrees 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.
ISSN号：
1009-0630
是否译文：
否
发表时间：
2018-11-01
合写作者：
李铮,杜海,孙琪杰,魏晨瑶,耿习琴
通讯作者：
史志伟
发表时间：
2018-11-01
学位：工学博士学位
职称：教授
所在单位：航空学院