辉光放电等离子体对边界层流动控制的机理研究

本文求解电位势方程得到电场分布,假定电场强度大于击穿阈值的区域为等离子体区,给定电荷密度,得到了作用于流体上的电场力。通过求解带源项的NS方程,研究了一个大气压下的均匀辉光放电等离子体对边界层流动的影响,考察了电场力做功对流动的影响。本文研究结果同文献6]一致,即电场力总体上使边界层流动加速。另外,电场力做功对流动参数的影响可以忽略。文献6]给出的线化电场模型和本文得到的电场相比,具有较大的差别,该差别引起了流动参数显著差别。

Numerical study for the influence of high-pressure glow discharged-induced plasma on the flow of boundary region

In this paper,the electric field distribution is obtained by solving the electric potential equation.The electric field forces acting on the fluid through one atmosphere uniform glow discharge plasma(OAUGDP) are obtained by such an assumption that the plasma region is where the electric field intensity is more than the breakdown threshhold,and the charge density is constant.The influences of OAUGDP on the boundary layer flow are studied and the effect of the work done by the electric field forces is investigated by solving the NS equation with source term.The results agree with those in literature 6] generally.The electric field forces can accelerate the fluid in the boundary.The influences of the work done by electric field forces on the flow parameter are trivial.The large computed electric fields given by simplified model in literature 6] are greatly different from those by solving the electric potential equation,which cause the great difference of the flow parameters,such as pressure and velocity.