Research on active arc-ignition technology as a possible residual-energy-release strategy in electromagnetic rail launch  

作　　者：Xiyuan CAI Sai TAN Junyong LU Xiao ZHANG Yun GUO 蔡喜元;谭赛;鲁军勇;张晓;郭赟(National Key Laboratory of Science and Technology on Vessel Integrated Power System,Naval University of Engineering,Wuhan 430033,People's Republic of China)

机构地区：[1]National Key Laboratory of Science and Technology on Vessel Integrated Power System,Naval University of Engineering,Wuhan 430033,People's Republic of China

出　　处：《Plasma Science and Technology》2021年第8期167-174,共8页等离子体科学和技术（英文版）

基　　金：supported in part by National Natural Science Foundation of China(Nos.51522706,51877214,51607187);in part by the National Basic Research Program of China(973 Program)(No.613262)。

摘　　要：In order to solve the problem of the original residual energy release strategy being unsuitable for high-energy and fast-firing electromagnetic rail launch,this work has explored the applicability of active arc-ignition technology(AAT).The results obtained from the comparison of launching experiments show that AAT has no influence on the acceleration of the armature and is capable of quickly releasing the residual energy.Based on the theory of magnetohydrodynamics,this work has also made numerical simulation of the muzzle arc,analyzed the influence of AAT on the muzzle arc flow field,electromagnetic(EM)field and temperature field,and evaluated the performance of AAT according to the projectile initial disturbance,the EM impact on guidance devices and the rail ablation.The results show that AAT is now one of the most practicable strategies for residual energy release.

关 键 词：muzzle arc initial disturbance guidance device arc ablation BACKFLOW 

分 类 号：O441[理学—电磁学]