A novel method for fast simulation of discharge, which uses a plasma fluid model, is proposed with a focus on the small space-charge variation in the calculation of electric field. A simple scalar equation is employed in the proposed method to calculate the electric field variation instead of solving Poisson’s equation at every time step when the dielectric relaxation time is relatively large compared to the time step interval. We perform numerical simulations of surface dielectric-barrier-discharge at atmospheric pressure, which is utilized in developing an active flow control device referred to as a plasma actuator, and demonstrate significant reduction of solve count of the Poisson’s equation throughout the simulation. The simulation result indicates that the CPU time required for the electric-field calculation becomes one order of magnitude smaller than that of the conventional approach within an error margin of one percent when several-10 kHz sinusoidal voltage is applied ...

中文翻译：

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介质阻挡放电模拟中等离子体流体模型的快速求解器

提出了一种使用等离子流体模型的快速放电模拟新方法，重点是电场计算中的小空间电荷变化。当介电弛豫时间相对于时间步长间隔相对较大时，在所提出的方法中使用简单的标量方程来计算电场变化，而不是在每个时间步长处求解泊松方程。我们对大气压力下表面介电势垒放电的数值模拟进行了数值模拟，该数值模拟被用于开发称为等离子致动器的有源流量控制装置，并在整个模拟过程中证明了泊松方程解数的显着减少。