Journal ArticleDOI
Lattice Boltzmann method simulation for MHD non-Darcy nanofluid free convection
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TLDR
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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Simulation of nanofluid heat transfer in presence of magnetic field: A review
TL;DR: In this article, a review of previous publications about nanofluid hydrothermal treatment in the presence of magnetic field is presented, where Ferrohydrodynamic and Magnetohydrodynamic (MHD) can take role in simulations.
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CuO-water nanofluid flow due to magnetic field inside a porous media considering Brownian motion
TL;DR: In this paper, the role of Darcy number, Hartmann number, Reynolds number, and CuO-water volume fraction was investigated in the presence of Lorentz forces and shape factor influence on nanofluid treatment were taken into consideration.
Journal ArticleDOI
Numerical simulation for impact of Coulomb force on nanofluid heat transfer in a porous enclosure in presence of thermal radiation
TL;DR: In this article, the influence of thermal radiation and external electric field on Fe3O4-Ethylene glycol nanofluid hydrothermal treatment is presented, where the lid driven cavity is porous media and the bottom wall is selected as positive electrode.
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Simulation of nanofluid flow and natural convection in a porous media under the influence of electric field using CVFEM
TL;DR: In this paper, a control volume based finite element method is employed to obtain the outputs which are the roles of radiation parameter ( Rd ), Darcy number ( Da ), nanofluid volume fraction ( ϕ ), Rayleigh number ( Ra ) and supplied voltage ( Δ φ ).
Journal ArticleDOI
Simulation of CuO-water nanofluid heat transfer enhancement in presence of melting surface
TL;DR: In this paper, the impact of melting heat transfer on nanofluid heat transfer enhancement in presence of magnetic field is simulated and an innovative numerical approach is utilized namely CVFEM.
References
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Journal ArticleDOI
Numerical simulation of magnetic nanofluid natural convection in porous media
TL;DR: In this paper, the free convection of magnetic nanofluid in a porous curved cavity is investigated, and an innovative numerical approach, namely CVFEM, is applied to evaluate the effect of Darcy number (Da ), Rayleigh ( Ra ), Hartmann ( Ha ) numbers and volume fraction of Fe 3 O 4 ( ϕ ) on hydrothermal characteristics.
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Magnetohydrodynamic nanofluid convection in a porous enclosure considering heat flux boundary condition
TL;DR: In this article, a control volume based finite element method was used to study a magnetohydrodynamic CuO-water nanofluid flow in a porous semi annulus with constant heat flux by means of Control Volume based Finite Element Method.
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Nanofluid two phase model analysis in existence of induced magnetic field
TL;DR: In this paper, the Runge-Kutta method was applied to find the solution of two phase double diffusion convection in presence of induced magnetic field, and numerical procedures were examined for various active parameters namely; Prandtl and Hartmann numbers, suction parameter, Buoyancy ratio, Schmidt number, thermophoretic and Brownian motion parameters.
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Effect of spatially variable magnetic field on ferrofluid flow and heat transfer considering constant heat flux boundary condition
TL;DR: In this paper, the effects of magnetic number, Hartmann number, Rayleigh number, and nanoparticle volume fraction on hydrothermal behavior have been examined and it was concluded that the enhancement in heat transfer decreases with an increase in the Rayleigh numbers and magnetic number but it increases with an increasing in the Hartmann numbers.
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Forced convection of nanofluid in presence of constant magnetic field considering shape effects of nanoparticles
TL;DR: In this article, the authors considered various shapes of nanoparticles and found that platelet shape has the highest rate of heat transfer and Nusselt number enhances with increase of nanofluid volume fraction, Darcy, and Reynolds number while it reduces with an increase of Lorentz forces.