计算物理 ›› 1985, Vol. 2 ›› Issue (2): 167-182.

• 论文 • 上一篇    下一篇

计算零温物态方程的一种方法

朱茂生, 陈栋泉, 林绍明, 李绍孟   

  1. 应用物理与计算数学研究所
  • 收稿日期:1984-07-28 修回日期:1984-10-18 出版日期:1985-06-25 发布日期:1985-06-25

A METHOD OF CALCULATING EPUATION OF STATE AT OK

Li Mao-sheng, Chen Dong-quan, Lin Shao-ming, Li Sha-meng.   

  1. Institute of Applied Physics and Computational Mathematics
  • Received:1984-07-28 Revised:1984-10-18 Online:1985-06-25 Published:1985-06-25

摘要: 本文利用Gruneisen系数的冷压微分关系式和经验内插公式,给出物质的冷压和冷能,在1≤ρ/ρo≤1.5范围内与Born-Mayer势和改进的Morse势形式的冷压相符得很好。我们计算Pb、W、Mo、Cu、Fe、Al等物质的Hugonit曲线(直至几TPa),与其实验结果比较,符合程度也是令人满意的。本文提供了两个积分表(Ip、Ie),可以利用它方便地计算出物质的冷压和冷能。

Abstract: We have obtained an equation of state at ok by use of the relation between the differential expression and an empirical interpalation expression of the Gruneisen coefficient.We have calculated Hugoniot curves for pb,w,Mo,Fe,Al, the results are in satisfactory agreement with experiments (up to about 5 TPa).The cold pressures abtained are in good agreement with those from From-Mayer potential and improved Morse potential in the range 1≤ρ/ρo ≤ 1.5.The two integrals used in calculating cold pressure and cold energy are tabularted