摘要
对等离子体气动激励控制边界层进行了数值仿真。将等离子体气动激励对边界层的作用建模成动量和热量。通过由基于表面放电的二维流体体力模型得到的等离子体气动激励的体力分布函数,得到向边界层注入的动量和热量分布,将动量和热量以源项的形式引入N-S方程求解。研究了等离子体气动激励的强度、激励电极的数目、来流速度的大小以及热量项的大小对等离子体气动激励作用效果的影响,仿真结果与实验一致。
Simulation investigation on boundary layer flow controlled by plasma aerodynamic actuation is performed, in which the influences of the plasma actuation on the boundary layer are regarded as added momentum and thermal energy. The body force of the plasma actuation is obtained by solving a two-dimensional fluid model of the surface discharge; from the body force the momentum and thermal energy acting on the boundary layer are induced, and then introduced into the Navier-Stokes equation as the source term. The influence of the intensity of the plasma aerodynamic actuation, the electrode number and position, as well as the thermal energy is investigated, the results agree with experiments.
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
2009年第1期72-77,共6页
Nuclear Fusion and Plasma Physics
基金
国家863计划(2005AA753031)
教育部优秀人才支持计划
空军工程大学工程学院优秀博士学位论文创新基金(BC07001)
关键词
等离子体气动激励
边界层
流动控制
仿真
Plasma aerodynamic actuation
Boundary layer
Flow control
Simulation
