物理化学学报 >> 1994, Vol. 10 >> Issue (06): 495-500.doi: 10.3866/PKU.WHXB19940604

研究论文 上一篇    下一篇

传递性质的自由体积模型对方阱流体的应用

刘洪勤   

  1. 北京化工学院化学工程系,北京 100029
  • 收稿日期:1992-11-10 修回日期:1993-03-26 发布日期:1994-06-15
  • 通讯作者: 刘洪勤

The Applications of Free Volume Models to the Evaluation of Transport Properties of Square Well Fluids

Liu Hong-Qin   

  1. Department of Chemical Engneering, Beijing Institute of Chemical Technology, Beijing 100029
  • Received:1992-11-10 Revised:1993-03-26 Published:1994-06-15
  • Contact: Liu Hong-Qin

关键词: 方阱流体, 粘度, 导热系数, 自由体积模型

Abstract:

This paper proposes a method of testing the free volume models for fluid transport properties by the MD simulation data for square well fluids. Several commouly used free volume models for viscosity and thermal conductivity are evaluated by the method,and the results show that the model proposed by this author is superior to others. Two important conclusions have been derived: a unified model can be applied to both viscosity and thermal conductivity, and the transport properties of liquld and gas (vapor) phases can be correlated simultaniously by the model with unified parameters. The conclusions approached here are of significance to the systems of practical interests.

Key words: Square well fluids, Viscosity, Thermal conductivity, Free volume model