不同密封电极宽度对大气压沿面介质阻挡放电等离子体激励器性能的影响研究

摘要

The airflow velocity and thrust force induced by surface dielectric barrier discharge plasma actua-tors with different encapsulated electrode widths are measured. The experimental results show that the actuator-induced maximum airflow velocity and thrust increase with the encapsulated electrode width when the width is narrow than 20 mm,however,the maximum airflow velocity and thrust force show no obvious change with the en-capsulated electrode width when the width is larger than 20 mm. This is mainly because the encapsulated elec-trode width affects the extension of the electrode field,which further affects the spatial distribution of plasma.%测量了不同密封电极宽度等离子体激励器所诱导的气流速度和推力.实验结果表明,当密封电极宽度小于20 mm时,激励器所诱导的最大风速和推力随着密封电极宽度的增加而增加;当密封电极宽度大于20 mm时,最大气流速度和推力不再随着密封电极的宽度发生变化.这主要是因为密封电极宽度影响了外加电场的延展,进而影响了等离子的空间分布.