Simulation of double diffusive convection in fluid-saturated porous media by lattice Boltzmann method Articles uri icon

authors

  • CHEN, SHENG
  • YANG, BO
  • ZHENG, CHUGUANG

publication date

  • May 2017

start page

  • 1501

end page

  • 1510

volume

  • 108

International Standard Serial Number (ISSN)

  • 0017-9310

Electronic International Standard Serial Number (EISSN)

  • 1879-2189

abstract

  • The research on double diffusive convection in porous media is important to deepen our insights into sustainable development and environment protection. A lattice Boltzmann (LB) model for REV (representative elementary volume) scale simulation of double diffusive convection in fluid-saturated porous media is proposed in the present work. It can work well not only for porous media with uniform porosity but also for non-uniform porous media. Several benchmark tests are adopted to validate its capability. The good agreement with previous publications demonstrates its applicability. It can provide an alternative numerical tool for modelling complex heat and mass transfer in fluid-saturated porous media beyond double diffusive convection, such as heat and moisture transfer in multi-layer building materials. (C) 2017 Elsevier Ltd. All rights reserved.

keywords

  • lattice boltzmann method; heat and mass transfer; porous media; double diffusive convection; non-uniform porosity; natural-convection; heat-transfer; mass-transfer; moisture transfer; mixed convection; square cavity; model; enclosure; nanofluid; porosity