A lattice Boltzmann model for thermal non-Newtonian fluid flows through porous media

GH.R. Kefayati, H. Tang, A. Chan, X. Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)

Abstract

Following recent studies by Huilgol and Kefayati [1,2], that developed a thermal Lattice Boltzmann method for different non-Newtonian fluids, we propose, in this paper, a general lattice Boltzmann method for thermal incompressible non-Newtonian fluids through porous media. Since no restrictions are placed on the constitutive equations in this method, the theoretical development can be applied to all fluids, whether they be Newtonian, or power law fluids, or viscoelastic and Bingham fluids. To validate the accuracy of the method, natural convection in a porous cavity was studied and compared with previous studies. Next, we employ the model to simulate natural convection of power-law and Bingham fluids in a porous cavity.

Original languageEnglish
Pages (from-to)226-244
Number of pages19
JournalComputers and Fluids
Volume176
DOIs
Publication statusPublished - 15 Nov 2018

Keywords

  • LBM
  • Natural convection
  • Non-Newtonian fluid
  • Porous media

ASJC Scopus subject areas

  • Computer Science(all)
  • Engineering(all)

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