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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Analyzing thermo-hydrodynamics of nanofluid flowing through a wavy U-turn channel
TL;DR: In this paper, the thermal-hydrodynamics of Al2O3-water nanofluid in a wavy U-turn channel with hot walls is numerically investigated by means of lattice Boltzmann modeling.
Journal ArticleDOI
Coulomb forces impacts on nanomaterial transportation within porous tank with lid walls
TL;DR: In this paper, a combination of buoyancy, electric and radiative forces has been included in the governing equations to control the style of the flow and the increment of Nu corresponding to increasing permeability is less than that obtained with the rise of voltage.
Journal ArticleDOI
Lattice Boltzmann method for consolidation analysis of saturated clay
TL;DR: Through the evaluation of convergence and accuracy, it is demonstrated that the proposed method is more accurate and reliable than the finite difference method (FDM) for 1D consolidation analysis of saturated clay.
Journal ArticleDOI
Simulation of heat transfer in 2D porous tank in appearance of magnetic nanofluid
Tran Dinh Manh,Nguyen Dang Nam,Kavikumar Jacob,Ahmad Hajizadeh,Houman Babazadeh,Mohammed Mahjoub,Iskander Tlili,Zuyi Li +7 more
TL;DR: In this paper, nano-sized powders with homogeneous behavior were dispersed into H2O within a permeable media and the authors demonstrated that convective flow augments with both Rayleigh and Darcy number and lessen with respect to Hartman number.
Journal ArticleDOI
Nonlinear vibration analysis of a rotor supported by magnetic bearings using homotopy perturbation method
Aboozar Heydari,Mina Mirparizi,Mina Mirparizi,Farshad Shakeriaski,Farhad S. Samani,Mohamadreza Keshavarzi +5 more
TL;DR: In this paper, the effects of nonlinear forces due to the electromagnetic field of bearing and the unbalancing force on nonlinear vibration behavior of a rotor is investigated, where the rotor is modeled as a rigid body supported by two magnetic bearings with eight-polar structures.
References
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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.