激波Hugoniot曲线上特征物理量的分析  

Analysis of characteristic quantities along shock Hugoniot curves

作　　者：段耀勇[1] 郭永辉[1] 邱爱慈[1] 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《核聚变与等离子体物理》2012年第1期1-7,共7页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金资助项目(10905047;10635050)

摘　　要：利用能够体现电子壳层结构效应的三项式状态方程,结合Hugoniot关系式,对Al和Ag的冲击压强和冲击温度进行计算,将结果与实验数据和其他代码计算的结果进行比对。然后对Be、Al、Fe、Ag、Au和Pb金属材料沿Hugoniot曲线上的压强、温度、平均电离度、Fermi简并因子和有效绝热指数进行系统地研究,并给出细致的物理分析。最后总结这些特征物理量随质量密度压缩比变化的一般趋势。Firstly, the equation of state in the form of three-term type which embodies electron-shell structure effect, in combination with the Hugoniot relation, is used to calculate the pressures and temperatures of A1 and Ag along the shock Hugoniot curve, and the computational results are compared with the experimental ones and data given by other codes. Secondly, some characteristic quantities including pressure, temperature, mean ionization degree, Fermi degeneracy factor, and effective adiabatic exponent for Be, AI, Fe, Ag, Au and Pb along shock curve are studied systematically and analyzed physically in detail. Finally, the general trends for the characteristic quantities as the function of the compression ratio of mass density are summarized.

关 键 词：状态方程 激波 稠密等离子体 

分 类 号：O535[理学—等离子体物理] O52[理学—物理]