磁驱动准等熵压缩铝物理量的数值分析  

Numerical Analysis on Physical Quantities of Aluminum in Magnetically Driven Isentropic Compression Experiments

作　　者：赵继波[1] 孙承纬[1] 罗斌强[1] 王桂吉[1] 蔡进涛[1] 谭福利[1] 

机构地区：[1]中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川绵阳621999

出　　处：《高压物理学报》2015年第4期279-285,共7页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金委员会-中国工程物理研究院NSAF联合基金重点项目(11176002)

摘　　要：根据一维磁流体力学计算程序SSS/MHD的控制方程组,建立了磁驱动准等熵压缩台阶铝的计算模型,并对铝中的物理量变化过程进行了数值计算。在计算得到的电流和样品后界面粒子速度历程与实验测试结果相符合的基础上,分析了负载构型(样品)的动态电感变化、磁扩散规律,以及温度、密度、压力和速度等物理量的分布和变化规律。研究结果对深入认识磁驱动准等熵压缩物理过程和改进实验设计具有重要意义。The equation groups of one dimensional magnetohydrodynamics code SSS/MHD are given, and a calculation model of magnetically driven isentropic compression on a side-step aluminum sample is established. Based on the calculated values of current and particle velocity at the back interface of sample,according to the ones obtained by the experiment, the change of dynamic inductance of the configuration （sample）, the law of magnetic field diffusion, and the distributions of temperature, densi- ty, pressure and particle velocity in sample are analyzed, which are important to deeply understand the physical process and improve the experimental design.

关 键 词：磁流体力学 SSS/MHD程序 磁驱动准等熵压缩 铝 

分 类 号：O347.1[理学—固体力学] O361.3[理学—力学]