Preliminary study of the electrospray DPE peculiarities from the liquid surface in the presence of the CSWs

作     者：贺伟国 霍卫杰 韩罗峰 朱康武 王锋 王泽坤 Weiguo HE;Weijie HUO;Luofeng HAN;Kangwu ZHU;Feng WANG;Zekun WANG

作者机构：School of Mechatronic Engineering and AutomationShanghai UniversityShanghai 200444People’s Republic of China Shanghai Aerospace Electronic Technology InstituteShanghai 201109People’s Republic of China Shanghai Aerospace Control Technology InstituteShanghai 201109People’s Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2024年第26卷第5期

页      面：110-120页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 082502[工学-航空宇航推进理论与工程] 0807[工学-动力工程及工程热物理] 0825[工学-航空宇航科学与技术] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China(No.12102099) the National Key R&D Program of China(No.2021YFC2202700) the Outstanding Academic Leader Project of Shanghai(Youth)(No.23XD1421700),respectively 

主　　题：ultrasonic electric propulsion system microsatellite high-speed imaging technique droplet partial emissions electric field 

摘      要：The Ultrasonic Electric Propulsion(UEP)system is a cutting-edge propulsion technology that is mostly used on platforms for small satellites(less than 10 kg).The characteristics of droplet partial emissions(DPEs)in the UEP system are investigated using a high-speed imaging technique(an ultra-high speed camera(NAC HX-6)and a long-distance microscope)in this *** experiments demonstrate that there are a few partial emission modes,including left-side emission,double-side emission,and right-side emission,that are present in the droplet emission process of the UEP *** modes are primarily caused by the partial formation of capillary standing waves(CSWs)on the emission surface of the ultrasonic *** emission rate for single-and double-sided emissions varies at different times,indicating that there are different CSWs engaged in droplet emission due to variations in the liquid film thickness and charge state of the liquid ***,as the droplets emit continuously,a raised area on the emission surface appears,with several droplets emitting there as a result of charge ***,photos of the CSWs with emitting droplets are obtained,which highlights the CSWs distinctive wave morphology.