广义Morse流体解析状态方程及对氮的应用

薛新英 孙久勋 田荣刚

薛新英, 孙久勋, 田荣刚. 广义Morse流体解析状态方程及对氮的应用[J]. 高压物理学报, 2009, 23(4): 288-298 . doi: 10.11858/gywlxb.2009.04.009
引用本文: 薛新英, 孙久勋, 田荣刚. 广义Morse流体解析状态方程及对氮的应用[J]. 高压物理学报, 2009, 23(4): 288-298 . doi: 10.11858/gywlxb.2009.04.009
XUE Xin-Ying, SUN Jiu-Xun, TIAN Rong-Gang. Analytic Equation of State for Generalized Morse Potential Fluid and Application to N2 Fluid[J]. Chinese Journal of High Pressure Physics, 2009, 23(4): 288-298 . doi: 10.11858/gywlxb.2009.04.009
Citation: XUE Xin-Ying, SUN Jiu-Xun, TIAN Rong-Gang. Analytic Equation of State for Generalized Morse Potential Fluid and Application to N2 Fluid[J]. Chinese Journal of High Pressure Physics, 2009, 23(4): 288-298 . doi: 10.11858/gywlxb.2009.04.009

广义Morse流体解析状态方程及对氮的应用

doi: 10.11858/gywlxb.2009.04.009
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    通讯作者:

    孙久勋

Analytic Equation of State for Generalized Morse Potential Fluid and Application to N2 Fluid

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    Corresponding author: SUN Jiu-Xun
  • 摘要: 根据Ross变分微扰理论以及硬球流体Percus-Yevick(PY) 径向分布函数表达式,建立了广义Morse势流体的解析状态方程。与模拟结果的比较一方面证实了广义Morse 势模型的合理性;另一方面表明了解析Ross变分微扰理论的精度相当或略好于非解析的Weeks-Chandler-Anderson (mWCA)理论,而优于复杂的优化超网络链积分方程理论(RHNC)。该解析状态方程被应用于拟合处于环境温度和压强小于1 GPa情形流体氮的实验数据,所得到的势能参数被用于预测高温高密度情形氮流体的压强,预测结果证实,该解析状态方程可以很好地适用于较宽的压强和温度范围。

     

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出版历程
  • 收稿日期:  2008-10-16
  • 修回日期:  2009-03-16
  • 发布日期:  2009-08-15

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