基于介质阻挡放电的等离子体除冰实验研究  

Experimental Investigation of Plasma Deicing Based on Dielectric Barrier Discharge

作　　者：贾宇豪 梁华[1] 魏彪[1] 谢理科 苏志 郑猩 JIA Yuhao;LIANG Hua;WEI Biao;XIE Like;SU Zhi;ZHENG Xing(Science and Technology on Plasma Dynamics Laboratory,Air Force Engineering University,Xi'an 710038,China)

机构地区：[1]空军工程大学等离子体动力学重点实验室,西安710038

出　　处：《高电压技术》2021年第7期2615-2623,共9页High Voltage Engineering

基　　金：国家自然科学基金(51790511,91941105,91941301)。

摘　　要：通过放电测试、热像测试和静态除冰实验,探索基于不同介质阻挡放电形式的等离子体除冰效果及机理,为提高等离子体激励的除冰能力提供参考。结果表明,纳秒脉冲介质阻挡放电的放电通道长,作用范围广,单周期能量为交流正弦波介质阻挡放电的50%。介质阻挡放电激励器高低压电极交界处温度最高,产热区域主要位于低压电极上方。交流正弦波介质阻挡放电主要以介质层产热来除冰,可以更快地突破冰层的潜热,融化冰层的方式为"线状"扩展,加热范围大但温度低;纳秒脉冲介质阻挡放电在除冰过程中能够产生等离子体,融化冰层方式为"点状"扩大,加热范围较为集中且温度高,其静态除冰性能优于交流正弦波介质阻挡放电;冰层厚度越小,激励电压越大,除冰效果越好。Through discharge tests,thermal image tests and static deicing experiments,the discharge principle,heat generation form,and deicing effect of airfoil based on different dielectric barrier discharges are discussed to provide references for improving the deicing ability of plasma actuation.The results show that the nanosecond pulsed dielectric barrier discharge(NS-DBD)has a longer channel and a wider range of action.The energy of NS-DBD in one period is 50%of that of the alternating-current dielectric barrier discharge(AC-DBD).The temperature at the junction of the high and low voltage electrodes of the dielectric barrier discharge actuator is highest,and the thermogenic area of the actuator is mainly located above the low voltage electrode.The method of AC-DBD deicing is realized mainly by heating the dielectric,which can break through the latent heat of ice sheets more quickly.In the process of AC-DBD deicing,the ice sheets melt in a"linear"manner,and the heating range is wider than that of NS-DBD while the temperature is lower.NS-DBD can remove ice by heating the dielectric and generating the plasma.In the process of NS-DBD deicing,the melting mode of ice sheets is"point-like"expansion,the heating range is relatively concentrated and the temperature is high.The static deicing performance of NS-DBD is better than that of AC-DBD,which has more advantages in terms of deicing.The smaller the thickness of the ice is,the better the de-icing effect.When the actuation voltage increases,the more ice can be melted by the actuator,thus the better de-icing effect can be achieved.

关 键 词：介质阻挡放电 等离子体除冰 纳秒脉冲 交流正弦波 介质层产热 

分 类 号：O53[理学—等离子体物理] V244.15[理学—物理]