金属丝电爆炸研究进展-(Ⅱ):水环境

Review of Electrical Exploding Wires-(Ⅱ): Underwater

水中金属丝电爆炸在温密等离子体基础研究、强冲击波产生等方面有重要应用,受到研究人员的持续关注。基于大量实验结果及多种精密诊断系统,研究人员对水中金属丝电爆炸的基本物理过程和实验规律有了更深入的认识,并基于此建立了多种仿真模型,取得了一些重要的研究成果。文中在广泛调研国内外现有文献的基础上,描述了水中金属丝电爆炸的电爆炸特性和冲击波特性,分析了丝参数、电参数和水介质参数对于水中金属丝电爆炸的影响规律,总结了水中金属丝电爆炸仿真研究采用的比作用量模型、无量纲模型和磁流体模型,并对水中金属丝阵内爆研究,以及水中金属丝电爆炸在产生强冲击波、制备纳米材料等的应用研究进行了综述。最后指出水中金属丝电爆炸在电爆炸产物的密度和冲击波压力测量、丝爆相变过程和击穿过程等方面还有待深入研究,对今后继续深入开展该领域的研究工作具有一定的借鉴作用。

Researchers have been paying attention to underwater electrical wire explosion which is important in basic research of warm dense plasma and strong shock wave generation. Based on a large number of experimental results and diagnostic results of a variety of precision diagnostic systems, researchers have a deeper understanding and grasp of the basic physical processes and basic physical laws of underwater electrical wire explosion, and have established a variety of simulation models. Some important research results in this field have been obtained. Based on the extensive research of domestic and foreign existing literatures, the electrical and shock wave characteristics of underwater electrical wire explosion are described, the influences of wire parameters, electrical parameters and water parameters on the underwater electrical wire explosion are summarized, and the relevant simulation models including specific action model, similarity parameters model and magnetohydrodynamic model are introduced in this paper. As a supplement, the research on wire array implosion and various applications of underwater electrical wire explosion including shock wave generation and nano-powder production are also reviewed. At last, it is pointed out further research is needed in the measurement of the wire density and shock wave, phase change and breakdown during the wire explosion.