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Study of Equation of State of the Dense Fluid He+H2 Mixtures
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Qi-Feng CHEN1, 2, Ling-Cang CAI2, Dong-Quan CHEN1, Fu-Qian JING2, Xian-Geng ZHAO1
Chinese Journal of High Pressure Physics | 2003, 17(3) : 173 - 179
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Chinese Journal of High Pressure Physics | 2003, 17(3): 173-179
Study of Equation of State of the Dense Fluid He+H2 Mixtures
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Qi-Feng CHEN1, 2, Ling-Cang CAI2, Dong-Quan CHEN1, Fu-Qian JING2, Xian-Geng ZHAO1
Affiliations
  • 1.National Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
  • 2.Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China
Published: 2003-09-05
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The mixing rule and the variational perturbation theory together with van der Waals one-fluid model have been used to study the equation of state of the dense fluid He+H2 mixtures with different H2∶He compositions in this work. The first-order quantum correction is included. To test the model and computational code, the isotherm of the fluid He+H2 mixtures at 300 K is calculated by using the existing α-exp-6 optimization potential parameters. The calculated isotherm for the fluid He+H2 mixtures is in agreement with the experimental data and molecular dynamics simulations. Then the equation of state of the fluid He+H2 mixtures with different He∶H2 (He∶H2=1∶1, 1∶3, 3∶1) compositions have been further investigated in the pressure range 0~60 GPa and temperature in the range 50~7000 K. Comparisons of the present results with Monte-Carlo simulations indicate that the quantum corrections for the calculation of the thermodynamic properties become significant at lower temperatures.

equation of state  /  fluid He+H2 mixtures  /  mixing rule  /  α-exp-6 potential
陈其峰, 蔡灵仓, 陈栋泉, 经福谦, 赵宪庚. 高密度流体He+H2混合物物态方程研究. 高压物理学报, 2003 , 17 (3) : 173 -179 .
Qi-Feng CHEN, Ling-Cang CAI, Dong-Quan CHEN, Fu-Qian JING, Xian-Geng ZHAO. Study of Equation of State of the Dense Fluid He+H2 Mixtures[J]. Chinese Journal of High Pressure Physics, 2003 , 17 (3) : 173 -179 .
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Year 2003 volume 17 Issue 3
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Article Info
  • Receive Date：2002-11-05
  • Online Date：2026-10-31
  • Published：2003-09-05
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  • Received：2002-11-05
  • Revised：2003-01-02
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Affiliations
    1.National Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
    2.Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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