This article presents a numerical model and simulation results for the flow stabilization problem behind a solid cylinder. Four dielectric barrier discharge actuators are attached to the cylinder surface, each consisting of two tape electrodes. The surface-exposed electrodes are supplied with a high sinusoidal voltage, whereas the embedded ones are electrically grounded. A surface low-temperature plasma is generated near the edge of the exposed electrode, where the electric field intensity is very high. Ions generated by the discharge drift along the cylinder surface and collide with neutral air molecules, generating airflow. This electrohydrodynamic flow suppresses, or completely eliminates, the flow separation in the downwind part of the cylindrical surface. It can also quench, or mitigate, the von Kármán vortices behind the cylinder. The simulation results reasonably agree with the experimental data published in the literature, validating the proposed numerical algorithm.

中文翻译：

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使用介质阻挡放电模拟圆柱后面的流动稳定的简化模型


本文介绍了实心圆柱体背后的流动稳定问题的数值模型和模拟结果。四个介质阻挡放电致动器连接到圆柱体表面，每个致动器由两个带状电极组成。表面暴露的电极提供高正弦电压，而嵌入式电极则接地。暴露电极边缘附近产生表面低温等离子体，此处电场强度非常高。放电产生的离子沿着气缸表面漂移并与中性空气分子碰撞，产生气流。这种电流体动力流抑制或完全消除了圆柱表面顺风部分的流动分离。它还可以消除或减轻圆柱体后面的冯卡门涡流。仿真结果与文献中发表的实验数据相当吻合，验证了所提出的数值算法。