A mesoscopic method based on the lattice Boltzmann method for thermal–solutal incompressible non-Newtonian power-law fluids through porous media is introduced. The macroscopic equations of different representative element volume (REV) models of porous media are presented, and the equations of power-law fluids through porous media for various REV models reported. The general mesoscopic model for two- and three-dimensional cases are presented, and their derivations shown. To demonstrate the ability of the proposed method, natural convection and double-diffusive natural convection of Newtonian and power-law fluids in porous cavities are studied, and the results are validated against previous findings. Finally, double-diffusive natural convection in a porous cubic cavity filled with a non-Newtonian power-law fluid is simulated by the proposed method.
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March 2021
Research Article|
March 29 2021
A mesoscopic model for thermal–solutal problems of power-law fluids through porous media
Special Collection:
Special Issue on the Lattice Boltzmann Method
Gholamreza Kefayati
;
Gholamreza Kefayati
a)
1
School of Engineering, University of Tasmania
, Hobart 7001, Tasmania, Australia
a)Author to whom correspondence should be addressed: [email protected]
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Ali Tolooiyan;
Ali Tolooiyan
1
School of Engineering, University of Tasmania
, Hobart 7001, Tasmania, Australia
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Andrew P. Bassom
;
Andrew P. Bassom
2
School of Natural Sciences, University of Tasmania
, Hobart 7001, Tasmania, Australia
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Kambiz Vafai
Kambiz Vafai
3
Mechanical Engineering Department, University of California
, Riverside, California 92521, USA
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a)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the Special Issue on the Lattice Boltzmann Method.
Physics of Fluids 33, 033114 (2021)
Article history
Received:
December 31 2020
Accepted:
March 02 2021
Citation
Gholamreza Kefayati, Ali Tolooiyan, Andrew P. Bassom, Kambiz Vafai; A mesoscopic model for thermal–solutal problems of power-law fluids through porous media. Physics of Fluids 1 March 2021; 33 (3): 033114. https://doi.org/10.1063/5.0042526
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