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Two-phase lattice Boltzmann simulation of nanofluid conjugate heat transfer in a microchannel

Two-phase lattice Boltzmann simulation of nanofluid conjugate heat transfer in a microchannel In this paper, numerical simulation of conjugate heat transfer of water-copper nanofluid is performed in a microchannel using two-phase lattice Boltzmann method (LBM), in which viscous dissipation is considered. In this study, the intermolecular forces such as drag, Brownian force, buoyancy, Van der Waals and Born forces are studied and analyzed. The magnitude of these forces is estimated and their degree of importance in the simulation is determined. Further, the effect of increasing the volume fraction and nanoparticles diameter on heat transfer and fluid flow is investigated. Finally, the effect of thermal conductivity of the microchannel’s wall on Nusselt numbers is investigated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Two-phase lattice Boltzmann simulation of nanofluid conjugate heat transfer in a microchannel

Thermophysics and Aeromechanics , Volume 28 (3) – May 1, 2021

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References (52)

Publisher
Springer Journals
Copyright
Copyright © Nauka/Interperiodica 2021
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/s0869864321030094
Publisher site
See Article on Publisher Site

Abstract

In this paper, numerical simulation of conjugate heat transfer of water-copper nanofluid is performed in a microchannel using two-phase lattice Boltzmann method (LBM), in which viscous dissipation is considered. In this study, the intermolecular forces such as drag, Brownian force, buoyancy, Van der Waals and Born forces are studied and analyzed. The magnitude of these forces is estimated and their degree of importance in the simulation is determined. Further, the effect of increasing the volume fraction and nanoparticles diameter on heat transfer and fluid flow is investigated. Finally, the effect of thermal conductivity of the microchannel’s wall on Nusselt numbers is investigated.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: May 1, 2021

Keywords: nanofluid; two-phase; lattice Boltzmann method; LBM; conjugate heat transfer; Nusselt number

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