Acta Phys. -Chim. Sin. ›› 2003, Vol. 19 ›› Issue (04): 352-355.doi: 10.3866/PKU.WHXB20030415

• ARTICLE • Previous Articles     Next Articles

Shear Viscosity of Simple Fluids in Porous Media: Molecular Dynamic Simulations and Correlation Models

Zhang Hui;Zhang Bing-Jian;Liang Shi-Qiang;Lu Ying-Hong;Hu Wen-Xuan   

  1. Department of Chemistry, Zhejiang University, Hangzhou 310027;Department of Earth Science, Nanjing University, Nanjing 210093
  • Received:2002-07-23 Revised:2002-12-03 Published:2003-04-15
  • Contact: Zhang Bing-Jian

Abstract: Equilibrium molecular dynamics simulations have been used to calculate the shear viscosity of fluid argon both in macrovolume system and in porous media at different temperatures, densities and pore widths. Simultaneously, based on the Chapman-Enskog(CE) theory for the transport properties of hard-sphere fluids and Heyes relationships which extend the CE theory to Lennard-Jones fluids, two correlation models which can describe the viscosity of simple fluid in porous media are proposed as a function of the reduced temperature, density and pore width. The validity of the models is evaluated by comparing the calculated viscosity to the simulation data.

Key words: Micro pores, Viscosity, Molecular dynamics, Correlation models