| Pressure dissociation of dense hydrogen |
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| 作者姓名： | 陈其峰 蔡灵仓 陈栋泉 经福谦 |
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| 作者单位： | Laboratory for Shock Wave and Detonation Physics Research,Institute of Fluid Physics, Mianyan 621900, China;Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;Laboratory for Shock Wave and Detonation Physics Research,Institute of Fluid Physics, Mianyan 621900, China;Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;Laboratory for Shock Wave and Detonation Physics Research,Institute of Fluid Physics, Mianyan 621900, China |
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| 基金项目： | Project supported by the Foundation of Laboratory for Shock Wave and Detonation Physics Research (Grant No 51478030203ZW0902) and by the National Natural Science Foundation of China (Grant No 100032040). |
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| 摘 要： | The self-consistent fluid variational model （SFVM） has been used to describe the pressure dissociation of dense hydrogen at high temperatures. This paper focuses on a mixture of hydrogen atoms and molecules and is devoted to the study of the phenomenon of pressure dissociation at finite temperatures. The equation of state and dissociation degree have been calculated from the free energy functions in the range of temperature 2000-10,000K and density 0.02-1.0g/cm^3, which can be compared with other approaches and experiments. The pressure dissociation is found to occur in higher density range, while temperature dissociation is a more gradual effect.
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| 关 键 词： | 压力分裂 氢原子 状态方程 自相容流程 |
| 收稿时间： | 3/4/2005 12:00:00 AM |
| 修稿时间： | 2005-03-042005-06-29 |
Pressure dissociation of dense hydrogen |
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| Chen Qi-Feng,Cai Ling-Cang,Chen Dong-Quan and Jing Fu-Qian.Pressure dissociation of dense hydrogen[J].Chinese Physics B,2005,14(10):2077-2082. |
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| Authors: | Chen Qi-Feng Cai Ling-Cang Chen Dong-Quan and Jing Fu-Qian |
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| Institution: | Laboratory for Shock Wave and Detonation Physics Research,Institute of Fluid Physics, Mianyan 621900, China; Laboratory for Shock Wave and Detonation Physics Research,Institute of Fluid Physics, Mianyan 621900, China;Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China; Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China |
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| Abstract: | The self-consistent fluid variational model (SFVM) has been used to describe the pressure dissociation of dense hydrogen at high temperatures. This paper focuses on a mixture of hydrogen atoms and molecules and is devoted to the study of the phenomenon of pressure dissociation at finite temperatures. The equation of state and dissociation degree have been calculated from the free energy functions in the range of temperature 2000--10,000K and density 0.02--1.0g/cm2, which can be compared with other approaches and experiments. The pressure dissociation is found to occur in higher density range, while temperature dissociation is a more gradual effect. |
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| Keywords: | equation of state pressure dissociation self-consistent fluid variational model dense hydrogen |
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