Magnetic field and internal heat generation effects on the free convection in a rectangular cavity filled with a porous medium saturated with Cu–water nanofluid

Rashad, A. M.; Rashidi, Majid; Lorenzini, Giulio; Ahmed, Sameh E.; Aly, Abdelraheem M.

doi:10.1016/j.ijheatmasstransfer.2016.08.025

Cited by 193 publications

(60 citation statements)

References 25 publications

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“…This leads the Lorentz force to be greater in a horizontal magnetic field. The observed trend is in accord with previous findings of Grosan et al [6] and Rashad et al [21].…”

Section: Simulation Resultssupporting

confidence: 93%

Effect of Magnetic Field Orientation on Nanofluid Free Convection in a Porous Cavity: A Heat Visualization Study

Zahmatkesh

2020

Journal of Thermal Engineering

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Effect of magnetic field orientation on free convection of several water-based nanofluids in a square porous cavity is analyzed in this study. To this aim, the heatline visualization technique is implemented for the first time. Moreover, streamlines and isotherms are employed to present fluid flow and temperature distribution. The governing equations are transformed into a dimensionless form and then solved using the finite-volume method. Computations are undertaken for different orientations and magnitudes of the imposed magnetic field in circumstances with distinct Rayleigh numbers and the nanoparticles types and volume fractions. The corresponding results are presented in terms of dimensionless distributions of streamlines, isotherms, and heatlines as well as numerical values of the flow strength and the average Nusselt number. Inspection of the results demonstrates that increase in the magnetic field strength deteriorates the heat transfer rate. This effect, however, diminishes with rise in the magnetic field inclination angle.

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“…This leads the Lorentz force to be greater in a horizontal magnetic field. The observed trend is in accord with previous findings of Grosan et al [6] and Rashad et al [21].…”

Section: Simulation Resultssupporting

confidence: 93%

Effect of Magnetic Field Orientation on Nanofluid Free Convection in a Porous Cavity: A Heat Visualization Study

Zahmatkesh

2020

Journal of Thermal Engineering

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“…To solve the Equations (20) to (25), choose the values of 3 , 5 , 7 , 9 , and 11 which are not given in the initial conditions. Once all initial conditions are found, then the Equations (20) to (25) are solved through Runge-Kutta fourth order method with the successive iterative step length is 0.01. The CPU running time for existing numerical solution is 0.5 seconds.…”

Section: Methodsmentioning

confidence: 99%

“…This excellent work attained the special focus of researchers and engineers. The concept of nanoparticles with various physical circumstances has been studied by many researchers …”

Section: Introductionmentioning

confidence: 99%

“…The concept of nanoparticles with various physical circumstances has been studied by many researchers. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] The use of heat transport through radiation has important features in the application of industry and engineering areas. Few applications include hypersonic fights, space vehicles, gas turbines, renewable energy, nuclear reactors gas cooling, and power plants.…”

Section: Introductionmentioning

confidence: 99%

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Triple diffusive flow of nanofluid with buoyancy forces and nonlinear thermal radiation over a horizontal plate

Archana

Reddy

Gireesha

et al. 2018

Heat Trans. Asian Res.

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The present attempt is made to elaborate the features of triple diffusive convective flow of an incompressible nanoliquid induced by horizontal surface under buoyancy forces. The effect of nonlinear thermal radiation is taken into account. Heat flux model of radiation is formulated through Rosseland's approximation. The radiation phenomenon plays a key role in modern solar energy equipment's. The nondimensional variables are introduced to convert the dimensional mathematical expressions into dimensionless single independent variable. Numerical scheme is developed to obtain the solution of mathematical model. The importance of controlling constraints on flow quantities are characterized through plots. The quantities of engineering importance are computed and elaborated graphically. It is noticed that the presence of salts and nanoparticles enhance the thermal performance of base liquid. The liquid temperature and its relevant thickness of thermal layer improved significantly with an increment in the values of radiative parameter. The larger values of parameters of Brownian motion and thermophoretic correspond to higher temperature profiles.

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“…Some of other recent studies on a boundary layer flow over a flat surface and curved surface are referenced in [24][25][26][27][28][29]. The effects of magnetic field on fluid flow are investigated in [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Irreversibility Analysis of Dissipative Fluid Flow Over A Curved Surface Stimulated by Variable Thermal Conductivity and Uniform Magnetic Field: Utilization of Generalized Differential Quadrature Method

Afridi

Wakif

Qasim

et al. 2018

Entropy

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The effects of variable thermal conductivity on heat transfer and entropy generation in a flow over a curved surface are investigated in the present study. In addition, the effects of energy dissipation and Ohmic heating are also incorporated in the modelling of the energy equation. Appropriate transformations are used to develop the self-similar equations from the governing equations of momentum and energy. The resulting self-similar equations are then solved by the Generalized Differential Quadrature Method (GDQM). For the validation and precision of the developed numerical solution, the resulting equations are also solved numerically using the Runge-Kutta-Fehlberg method (RKFM). An excellent agreement is found between the numerical results of the two methods. To examine the impacts of emerging physical parameters on velocity, temperature distribution and entropy generation, the numerical results are plotted against the various values of physical flow parameters and discussed physically in detail.

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Magnetic field and internal heat generation effects on the free convection in a rectangular cavity filled with a porous medium saturated with Cu–water nanofluid

Cited by 193 publications

References 25 publications

Effect of Magnetic Field Orientation on Nanofluid Free Convection in a Porous Cavity: A Heat Visualization Study

Effect of Magnetic Field Orientation on Nanofluid Free Convection in a Porous Cavity: A Heat Visualization Study

Triple diffusive flow of nanofluid with buoyancy forces and nonlinear thermal radiation over a horizontal plate

Irreversibility Analysis of Dissipative Fluid Flow Over A Curved Surface Stimulated by Variable Thermal Conductivity and Uniform Magnetic Field: Utilization of Generalized Differential Quadrature Method

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