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基于正离子、电子和氧负离子的三组分空气DBD等离子体动力学模型和流体动力学方程,利用有限体积方法处理控制方程空间项,采用双时间步方法模拟非定常过程,对DBD空气等离子体动力学模型方程和流体动力学方程松耦合求解,数值模拟了高压交流电源激励的低速空气等离子体流动过程。仔细研究了一个周期中真实时间步长对模拟DBD等离子体形成过程的影响,给出了等离子体的形成历程以及等离子体对低速翼型边界层流动的影响,结果在定性上是合理的。
Based on the three-component air DBD plasma dynamics model and the hydrodynamics equation of positive ions, electrons and oxygen anions, the space items of the control equations are treated by the finite volume method and the unsteady processes are simulated by the two-time step method. The DBD air plasma The dynamic model equations and the fluid dynamics equations are loosely coupled to solve the numerical simulation of low-speed air plasma flow induced by high-voltage AC power. The effect of the real time step in one cycle on the formation of plasma in the simulated DBD was carefully studied. The formation history of the plasma and the influence of the plasma on the flow in the boundary layer of the low speed airfoil were investigated. The results are qualitatively reasonable.