Non-Newtonian rheology property for two-phase flow on fingering phenomenon in porous media using the lattice Boltzmann method
作者: Y. ShiG.H. Tang
作者单位: 1MOE Key Laboratory of Thermo-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
刊名: Journal of Non-Newtonian Fluid Mechanics, 2016, Vol.229 , pp.86-95
来源数据库: Elsevier Journal
DOI: 10.1016/j.jnnfm.2015.12.002
关键词: Non-NewtonianTwo-phase flowLattice Boltzmann method
原始语种摘要: Abstract(#br)Fingering phenomenon takes place when a less viscous fluid displaces a more viscous fluid and it has been extensively studied due to the importance in industrial fields. In this paper, a lattice Boltzmann method for immiscible non-Newtonian two-phase flow is proposed. The fundamental physical mechanisms of Newtonian fluid displacing non-Newtonian fluid in porous media are investigated in terms of power-law exponent, capillary number, viscosity ratio, surface wettability, Bond number and geometry. The numerical results provide a good understanding of the mechanism for Newtonian fluid displacing non-Newtonian fluid from a mesoscopic point of view, and it also demonstrates that the lattice Boltzmann method is a useful tool for simulating non-Newtonian two-phase flow in porous...
全文获取路径: Elsevier  (合作)
影响因子:1.567 (2012)

  • porous 多孔的
  • fluid 
  • lattice 
  • viscous 粘滞的
  • rheology 龄学
  • method 方法
  • phase 相位
  • displacing 顶替
  • media 中脉
  • exponent 指数