液氮冲击压缩特性的理论计算

孟川民; 施尚春; 董石; 孙悦; 焦荣珍; 杨向东

doi:10.11858/gywlxb.2002.03.009

液氮冲击压缩特性的理论计算

doi: 10.11858/gywlxb.2002.03.009

1.
四川大学高温高压物理研究所，四川成都 610065；
2.
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 621900

详细信息

通讯作者:
孟川民

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出版历程
- 收稿日期: 2001-07-20
- 修回日期: 2002-01-09
- 发布日期: 2002-09-05

Theoretical Calculation for Shock Compressional Properties of Liquid Nitrogen

1.
Institute of High Temperature and High Pressure Physics, Sichuan University, Chengdu 610065, China;
2.
Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China

More Information

Corresponding author: MENG Chuan-Min

摘要

摘要: 用修正的WCA理论计算了液氮冲击压缩至70 GPa的一次冲击Hugoniot数据。计算中引入与体系比容有关的分子离解因子，计算结果表明，在33GPa以上液氮体系发生的相变为分子离解相变，该过程对体系热力学状态有较大影响，分子离解是对冲击能量的吸收过程，导致体系冲击压力和温度增长率下降。
- 液氮 /
- 冲击压缩 /
- 离解相变
Abstract: For the liquid nitrogen, the modified WCA fluid perturbation theory is used to calculate the shock pressure and shock temperature with the exp-6 reference potential. The theory is generalized from multi-component system by adding the molecular dissociation fraction, which is related to volume. The theoretical results of pH and TH are in good agreement with those of experimental data up to 70 GPa. According to the theoretical and experimental data, the shock energy is partially absorbed by molecular dissociation.
- liquid nitrogen /
- shock compression /
- dissociation

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参考文献(15)

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