中文摘要：

通过在Navier—Stokes方程组中添加体积力源项的方法，模拟了二维不可压流中等离子体激励器对周围流场的诱导作用．计算结果表明等离子体激励器在其下游会产生一股贴近物面的壁面射流，该射流各截面的速度型、最大速度衰减、射流宽度增长等均与典型的层流射流（壁面射流或二维狭缝射流）一致，表明等离子体激励对周围中性流体的诱导是一种势流影响．最后通过积分得到了等离子体诱导壁面射流的吹气系数，通过与传统吹气流动控制技术比较，指出目前等离子体激励产生的壁面射流吹气系数较小，仅适用于低速条件下的流动控制．

英文摘要：

The flow induced by plasma actuator in two dimensional incompressible flow was simulated based on a phenomenological model, which was realized by adding the body force source term to the Navier- Stokes equations. The numerical results present that there is a wall jet formed downstream of the plasma actuator. The velocity profiles at different streamwise stations, the variation of the maximum velocity and the width variation of the wall jet are quit similar to the traditional laminar jet （ wall jet or two dimensional slot jet）, which indicates that the effect of the plasma actuator on the ambient neutral flow can be regarded as potential flow interaction. At last, the blowing momentum coefficient of the wall jet induced by the plasma actuator was obtained by integration, which was negligible compared with that of the traditional blowing flow control method. So the plasma actuator flow control method just can be applied in low speed flow at present.