活跃流动控制在最近的年里基于表面电介质障碍分泌物(SDBD ) 成为了研究的一个焦点,由于它的唯一的优点和多样的潜在的应用。与有直电极的常规 SDBD 相比, serrated 基于电极的 SDBD 由于它的 3D 流动拓扑学有一个大优点。动人的目标的边界层分离能与 SDBD 的这种新类型更有效地被控制,这被相信。在有一个 serrated 电极的 SDBD, R (尖端清晰度) 和 N (尖端数字每统一长度) 在分泌物和导致的气流特征上有大影响。在这篇论文,有一个 serrated 电极的 SDBD 的特征的参量的研究与 R 和 N 的不同范围被进行了。电源消费,稳定的中等温度分发,和最大的导致的气流速度的方面被调查了。结果显示有最大的电源消费和导致的气流速度被完成的 R 和 N 的批评价值。中等表面的稳定的温度分发的一致性被发现更依赖于 N。我们发现导致的气流的加速的效果能与 Schlieren 技术被评估,它从 pitot 试管与结果同意很好。
Active flow control based on surface dielectric barrier discharge(SDBD) has become a focus of research in recent years,due to its unique advantages and diverse potential applications.Compared with the conventional SDBD with straight electrodes,the serrated electrode-based SDBD has a great advantage due to its 3D flow topology.It is believed that the boundary layer separation of moving objects can be controlled more effectively with this new type of SDBD.In SDBD with a serrated electrode,the R(tip sharpness) and N(tip number per unit length) have a great influence on the discharge and induced airflow characteristics.In this paper,a parametric study of the characteristics of SDBD with a serrated electrode has been conducted with different ranges of R and N.Aspects of the power consumption,the steady medium temperature distribution,and the maximum induced airflow velocity have been investigated.The results indicate that there is a critical value of R and N where the maximum power consumption and induced airflow velocity are achieved.The uniformity of the steady temperature distribution of the medium surface is found to be more dependent on N.We found that the accelerating effects of the induced airflow can be evaluated with the Schlieren technique,which agree well with the results from the pitot tube.