The validity of numerical modeling of discharge plasma in dielectric barrier discharge plasma actuator is evaluated by comparing the simulation and experimental results under the same conditions. Discharge plasma behavior is numerically simulated based on a three-fluid plasma model. Regarding the induced jet structure, although the simulation tends to underestimate the jet thickness and overestimate the maximum velocity, the discrepancies are small considering the quite simple modeling. In addition, the values of thrust force in the simulation are consistent with those in the experiment only within 10–20%. On the other hand, the simulation underestimates the power consumption by 40–50% mainly due to the assumption of two-dimensionality. Furthermore, the thrust force and power consumption are investigated from the viewpoint of characteristics for voltage amplitude, voltage waveform, and dielectric material. As a result, the discharge mode in the simulation, which strongly affects the electrohydrodynamic force generation characteristics, needs to be consistent with that in the experiment to reproduce the voltage waveform characteristics of thrust force. In addition, to reproduce the dielectric material characteristics of thrust force, not only permittivity but also secondary electron emission coefficient needs to be set to appropriate values for each material.

通过比较相同条件下的仿真结果和实验结果，评价了介质阻挡放电等离子体致动器中放电等离子体数值建模的有效性。基于三流体等离子体模型对放电等离子体行为进行数值模拟。关于诱导射流的结构，尽管模拟趋向于低估了射流的厚度而高估了最大速度，但考虑到非常简单的建模，差异却很小。此外，模拟中的推力值与实验中的值仅在10％到20％之间一致。另一方面，由于二维的假设，该模拟低估了功耗40％至50％。此外，从电压幅度，电压波形和介电材料的特性角度研究了推力和功耗。结果，模拟中的放电模式会严重影响电液动力的产生特性，因此需要与重现推力的电压波形特性的实验中的放电模式保持一致。另外，为了再现推力的电介质材料特性，不仅需要将介电常数而且还将二次电子发射系数设置为每种材料的适当值。需要与实验中的一致以重现推力的电压波形特征。另外，为了再现推力的电介质材料特性，不仅需要将介电常数而且还将二次电子发射系数设置为每种材料的适当值。需要与实验中的一致以重现推力的电压波形特征。另外，为了再现推力的电介质材料特性，不仅需要将介电常数而且还将二次电子发射系数设置为每种材料的适当值。