中国物理B ›› 2017, Vol. 26 ›› Issue (8): 86101-086101.doi: 10.1088/1674-1056/26/8/086101

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Density functional study on the pressure profile of the inhomogeneous fluid mixture

Yanshuang Kang(康艳霜), Yanmei Kang(康艳梅), Zongli Sun(孙宗利), Yushan Li(李玉山), Shanshan Tan(檀姗姗)   

  1. 1 College of Science, Agriculture University of Hebei, Baoding 071001, China;
    2 University of International Relations, Beijing 100091, China;
    3 Science and Technology College, North China Electric Power University, Baoding 071051, China;
    4 Department of Physics and Electronic Engineering, Heze University, Heze 274015, China
  • 收稿日期:2017-03-10 修回日期:2017-05-02 出版日期:2017-08-05 发布日期:2017-08-05
  • 通讯作者: Yanshuang Kang, Zongli Sun E-mail:kang_yanshuang@163.com;sunzl@ncepu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 21503077), the Fundamental Research Fund for the Central Universities of China (Grant Nos. 2016MS156 and 13MS105), the Technology Research and Development Program of Hebei Province, China (Grant No. 13213704), and the Program of Study Abroad for Young Teachers by Agricultural University of Hebei.

Density functional study on the pressure profile of the inhomogeneous fluid mixture

Yanshuang Kang(康艳霜)1, Yanmei Kang(康艳梅)2, Zongli Sun(孙宗利)3, Yushan Li(李玉山)4, Shanshan Tan(檀姗姗)3   

  1. 1 College of Science, Agriculture University of Hebei, Baoding 071001, China;
    2 University of International Relations, Beijing 100091, China;
    3 Science and Technology College, North China Electric Power University, Baoding 071051, China;
    4 Department of Physics and Electronic Engineering, Heze University, Heze 274015, China
  • Received:2017-03-10 Revised:2017-05-02 Online:2017-08-05 Published:2017-08-05
  • Contact: Yanshuang Kang, Zongli Sun E-mail:kang_yanshuang@163.com;sunzl@ncepu.edu.cn
  • About author:0.1088/1674-1056/26/8/
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 21503077), the Fundamental Research Fund for the Central Universities of China (Grant Nos. 2016MS156 and 13MS105), the Technology Research and Development Program of Hebei Province, China (Grant No. 13213704), and the Program of Study Abroad for Young Teachers by Agricultural University of Hebei.

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摘要：

By using the statistical mechanics, the pressure tensor for the multi component fluid mixture is derived. With the help of the classical density functional theory, profiles of the pressure components are calculated, and the influence of the total volume fraction, ratio of volume fraction, and size asymmetry on the pressure are studied. In addition, our results show that for the mixture confined in the hard cavity, the pressure shows a discontinuity near the cavity wall. However, in the soft cavity condition, the discontinuity disappears.

关键词: pressure tensor, density functional theory, fluid mixture, correlation

Abstract:

By using the statistical mechanics, the pressure tensor for the multi component fluid mixture is derived. With the help of the classical density functional theory, profiles of the pressure components are calculated, and the influence of the total volume fraction, ratio of volume fraction, and size asymmetry on the pressure are studied. In addition, our results show that for the mixture confined in the hard cavity, the pressure shows a discontinuity near the cavity wall. However, in the soft cavity condition, the discontinuity disappears.

Key words: pressure tensor, density functional theory, fluid mixture, correlation

中图分类号:  (Theory and models of liquid structure)

  • 61.20.Gy
62.10.+s (Mechanical properties of liquids)