【作者】 陈阳； 张宇； 缪劲松； 靳振岗； 欧阳吉庭；

【Author】 CHEN Yang;ZHANG Yu;MIAO Jinsong;JIN Zhengang;OUYANG Jiting;School of Physics,Beijing Institute of Technology;

【机构】 北京理工大学物理学院；

【摘要】 为研究电晕离子风的特性,本文采用针-板放电装置,实验测量了不同条件下的离子风速、风压,研究了放电电压、电极间距等因素对电晕风的影响,对比了正负电晕风的速度及风压。结果表明,电晕风速随过电压的增加而线性增大,相同条件下正电晕离子风的风速大于负电晕离子风,而且随过电压的增加速度更快,同时正电晕的起晕电压也高于负电晕,这一差异与正负电晕的形成机制有关。更多还原

【Abstract】 To investigate the characteristics of ionic wind of corona discharge,the needle-to-plate configuration has been employed in this paper.The wind velocity and wind pressure were measured experimentally under different conditions including the applied voltage,electrode spacing and the voltage polarity.The results show that the velocity increases linearly with the overvoltage(or the difference between the applied voltage and the inception).The wind velocity of positive corona is higher than the negative at the same overvoltage and electrode spacing,and the velocity increases faster with the voltage in positive corona.Also the inception voltage of the positive corona is higher than the negative.This discrepancy relates to the mechanism of positive or negative corona discharge.更多还原