带窗口磁驱动准等熵压缩实验模拟  

Simulation of magnetically driven quasi-isentropic compression experiments with windows

作　　者：阚明先[1] 王刚华[1] 刘利新[1] 南小龙[1] 计策[1] 何勇[1] 段书超[1] Kan Mingxian;Wang Ganghua;Liu Lixin;Nan Xiaolong;Ji Ce;He Yong;Duan Shuchao(Institute of Fluid Physics,CAEP,P.O.Box 919-111,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《强激光与粒子束》2021年第5期117-121,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(12075226)。

摘　　要：在二维磁驱动数值模拟程序MDSC2中增加了LiF材料的材料参数和功能模块,使MDSC2程序具有了求解带窗口磁驱动准等熵压缩实验的能力。采用MDSC2程序,对大电流脉冲功率装置上的exp-3-window、exp-6-window带窗口磁驱动准等熵压缩实验进行了模拟。数值模拟结果表明,二维磁驱动数值模拟程序MDSC2能正确模拟带窗口磁驱动准等熵压缩实验exp-3-window和exp-6-window的全过程,模拟的飞片/窗口界面速度在飞片/窗口界面速度的上升阶段、峰值附近和卸载阶段与实验测量基本一致,验证了新程序的计算有效性。MDSC2程序对带窗口磁驱动准等熵压缩实验的正确模拟有助于磁驱动样品物性实验的研究。The material parameters and functional modules of LiF are added to the two-dimensional magnetically driven simulation code(MDSC2),which makes MDSC2 code have the ability to simulate the magnetically driven quasi-isentropic compression experiments with windows.Magnetically driven experiments with windows,shots of exp-3-window and exp-6-window,which were carried out in a large pulsed power device,are simulated and analyzed by the MDSC2 code.The simulated flyer plate/window interface velocities agree well with the experimental records by Velocity Interferometry System for Any Reflector(VISAR).The magneto-hydrodynamic code can correctly simulate the magnetically driven experiments with windows,which is helpful to understand the physical mechanism of sample material behaviors in magnetically driven experiments with windows.

关 键 词：磁驱动准等熵压缩实验 二维磁驱动数值模拟程序 飞片/窗口界面速度 磁流体力学 数值模拟 

分 类 号：O361.3[理学—流体力学]