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

doi:10.1088/1674-1056/26/8/086101

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.

Keywords: pressure tensor density functional theory fluid mixture correlation

Received: 10 March 2017
Revised: 02 May 2017
Accepted manuscript online:

PACS:	61.20.Gy	(Theory and models of liquid structure)
	62.10.+s	(Mechanical properties of liquids)

Fund:

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.

Corresponding Authors: Yanshuang Kang, Zongli Sun
E-mail: kang_yanshuang@163.com;sunzl@ncepu.edu.cn

About author: 0.1088/1674-1056/26/8/

Cite this article:

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) Density functional study on the pressure profile of the inhomogeneous fluid mixture 2017 Chin. Phys. B 26 086101

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