多组元混合物状态方程

施研博; 赵艳红; 刘海风; 孟续军; 王学容

doi:10.11858/gywlxb.2016.06.003

多组元混合物状态方程

doi: 10.11858/gywlxb.2016.06.003

北京应用物理与计算数学研究所，北京 100094

基金项目:

国防基础科研项目 B1520110011

详细信息

作者简介:
施研博(1983-), 男, 硕士, 副研究员, 主要从事辐射流体力学研究.E-mail:shi_yanbo@iapcm.ac.cn

中图分类号: O521.2; O414.12
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出版历程
- 收稿日期: 2015-11-02
- 修回日期: 2016-04-12

Equation of State for Multi-Component Mixture

Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

摘要

摘要: 根据等温等压的热力学平衡条件及体积相加原理，建立了一种多组元混合物状态方程理论模型，基于单质的状态方程，得到混合物的内能、压力、定容比热容、压强系数、等温声速等。采用该模型计算了一种4组元钨合金的状态方程，与状态方程库提供的合金状态方程符合得较好。
- 混合物 /
- 状态方程 /
- 等温等压 /
- 体积相加
Abstract: An equation-of-state (EOS) calculation model was presented for a multi-component mixture by assuming that all components of the mixture are in a locally thermodynamic equilibrium state, which means that they are isothermal and isobaric, and that the sub-volume of each component is additive. Thermodynamic quantities of the mixture, such as internal energy, pressure, constant-volume specific heat, pressure coefficient and isothermal sound speed, can be constructed with the EOS of each component. Based on this model, we calculated the EOS of a 4-component tungsten alloy, which is remarkably consistent with the result achieved from the wide-range equation of state.
- mixture /
- equation of state /
- isothermal-isobaric /
- volume additivity

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图 1 钨合金W₈₉Mo₉Fe₁Ni₁的冲击雨贡纽曲线

Figure 1. Hugoniot curve of tungsten alloy W₈₉Mo₉Fe₁Ni₁

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图 2 两种状态方程得到的钨合金冲击压强的相对差异

Figure 2. Relative difference of shock pressure obtained from two equations of state

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图 3 两种状态方程得到的钨合金压强和内能的相对差异

Figure 3. Relative differences of pressure and internal energy obtained from two equations of state

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图 4 钨合金和纯钨的压强和内能的相对差异

Figure 4. Relative difference of pressure and internal energy obtained from tungsten alloy and pure tungsten

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参考文献(5)

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