摘要
为对电流体动力(EHD)等离子体发生器进行性能优化,提高能量转化效率,使用石英和聚四氟乙烯作为介质板,通过实验测量了等离子体发生器的能量消耗和产生的气流速度随背面电极宽度、电极水平间距、电源电压和频率以及放电状态等的变化曲线,用气流速度与单位长度能量消耗的比值对发生器能量转化效率进行衡量。结果表明,等离子体发生器背面电极宽度为2倍正面电极宽度时气流速度最大;无间距等离子体发生器对气流加速效果并非最佳;诱导的气流速度随电压升高先上升后下降,存在气流速度的最大值;当等离子体放电在视觉上比较均匀时放电的能量转换效率最高。实验结果为EHD等离子体发生器提高能量转化效率,进行结构优化提供了参考。
In order to optimize the performance of electrohydrodynamic（EHD） plasma actuator and increase power conversion efficiency,we experimentally researched the effects of plasma actuator back plate electrode width,electrode gaps,voltage and frequency of power and discharge condition on energy consumption and air velocity in Quartz and Teflon plates,and measured the energy conversion efficiency by the ratio of air velocity to energy consumption per unit length.The results show that when the width of back plate electrode is twice of front electrode,air velocity has the maximum value,and the energy conversion efficiency is the highest.Plasma actuator without electrode gaps is not the best condition for airflow acceleration.As the voltage rises,air velocity decreases after an increase and has its maximum value.Energy conversion efficiency is the highest when plasma discharge is visually more homogenous.The results will contribute to the improvement of energy conversion efficiency and structural optimization of plasma actuators.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2011年第6期1426-1431,共6页
High Voltage Engineering
基金
国家自然科学基金(51077089)
山东省中青年科学家科研奖励基金(2008BS01020)~~
