Journal ArticleDOI
Lattice Boltzmann method simulation for MHD non-Darcy nanofluid free convection
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In this paper, the Lattice Boltzmannian method is selected as mesoscopic approach for convective flow in cubic porous enclosure and the Brownian motion impact is taken into account via KKL model.Abstract:
Magnetohydrodynamic nanofluid convective flow in cubic porous enclosure is reported. Lattice Boltzmann Method is selected as mesoscopic approach. Brownian motion impact is taken into account via KKL model. Roles of Darcy number ( D a ) , Hartmann number ( H a ) , Rayleigh number ( R a ) , and Al 2 O 3 volume fraction ( ϕ ) are presented. Outputs are illustrated in forms of velocity contours, isokinetic energy, streamlines, isotherms and Nusselt number. Results indicate that temperature gradient over the hot surface augments with rise of Darcy numbers and ϕ while it reduces with augment of Lorentz forces. Nusselt number enhances with increase of buoyancy forces and permeability of porous media. Nanofluid motion enhances with augment of ϕ , D a , R a while it decreases with augment of H a .read more
Citations
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Thermo-hydraulic characteristics investigation of nanofluid heat transfer in a microchannel with super hydrophobic surfaces under non-uniform magnetic field using Incompressible Preconditioned Lattice Boltzmann Method (IPLBM)
TL;DR: In this paper, the heat transfer and fluid flow investigation of a nanofluid in a microchannel with super hydrophobic surfaces was conducted, where the incompressible version of lattice Boltzmann method with precondition factor was employed to achieve a true prediction of friction factor and Nusselt number under the effect of ascending magnetic field.
Journal ArticleDOI
Simulation of thermal behavior of hybrid nanomaterial in a tube improved with turbulator
TL;DR: In this article, hybrid nanopowders were dispersed inside a pipe to improve the feature of testing fluid, and simulations of swirl flow intensification were performed in terms of contours.
Journal ArticleDOI
The influence of hybrid nanoparticle (Fe3O4 + MWCNT) transportation on natural convection inside porous domain
TL;DR: In this paper, a hybrid nanofluid free convection has been simulated within a permeable domain involving Lorentz effect in a control volume-based finite element method.
Journal ArticleDOI
Modeling of heat transfer augmentation due to complex-shaped turbulator using nanofluid
Qingang Xiong,Mohammad Bagher Ayani,Azeez A. Barzinjy,Azeez A. Barzinjy,Rebwar Dara,Ahmad Shafee,Trung Nguyen-Thoi +6 more
TL;DR: To improve the efficiency of pipe, dispersing nanomaterial as well as insertion of turbulator was suggested in current paper as discussed by the authors, which showed that intensity of swirl flow boosts with augmenting width ratio which provides greater pressure drop.
References
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Journal ArticleDOI
Buoyancy-driven heat transfer enhancement in a two-dimensional enclosure utilizing nanofluids
TL;DR: In this article, a model is developed to analyze heat transfer performance of nanofluids inside an enclosure taking into account the solid particle dispersion, where the transport equations are solved numerically using the finite-volume approach along with the alternating direct implicit procedure.
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Effect of thermal radiation on magnetohydrodynamics nanofluid flow and heat transfer by means of two phase model
TL;DR: In this paper, the effect of thermal radiation on magnetohydrodynamics nanofluid flow between two horizontal rotating plates is studied and the significant effects of Brownian motion and thermophoresis have been included in the model of Nanofluide.
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Three dimensional mesoscopic simulation of magnetic field effect on natural convection of nanofluid
TL;DR: In this paper, the effects of Brownian motion on the effective viscosity and thermal conductivity of nanofluid were investigated. And the results were presented graphically in terms of streamlines, isotherms and isokinetic energy.
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Effect of a magnetic field on free convection in a rectangular enclosure
TL;DR: In this paper, a finite difference scheme consisting of modified ADI (Alternating Direction Implicit) method and SLOR (Successive Line Over Relaxation) method is used to solve the vorticity-stream function formulation of the problem.
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KKL correlation for simulation of nanofluid flow and heat transfer in a permeable channel
TL;DR: In this article, the effects of the nanoparticle volume fraction, Reynolds number, expansion ratio and power law index on Hydrothermal behavior of nanofluid fluid between two parallel plates is studied.