Entropy generation analysis of mixed convection with considering magnetohydrodynamic effects in an open C-shaped cavity

Armaghani, T.; Kasaeipoor, Abbas; Mohammadpoor, Usef

doi:10.2298/tsci171213112a

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…For the efficient working of pumps, turbines, and bearings, this assessment of MHD fluids became essential. Armaghani et al [17] analyzed entropy transmission in free forced convection by using MHD effects in an open C-shaped hole. The findings reveal that a higher Hartmann number leads to increased entropy generation while increasing the aspect ratio of the cavity, promotingthe movement of heat.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

Magnetohydrodynamic and Thermal Performance of Electrically Conducting Fluid along the Symmetrical and Vertical Magnetic Plate with Thermal Slip and Velocity Slip Effects

et al. 2023

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Numerical and physical simulations of the magnetohydrodynamic mixed convective flow of electrically conducting fluid along avertical magnetized and symmetrically heated plate with slip velocity and thermal slip effects have been performed. The novelty of the present work is to evaluate heat transfer and magnetic flux along the symmetrically magnetized plate with thermal and velocity slip effects. For a smooth algorithm and integration, the linked partial differential equations of the existing fluid flow system are converted into coupled nonlinear ordinary differential equations with specified streaming features and similarity components. By employing the Keller Box strategy, the modified ordinary differential equations (ODEs) are again translated in a suitable format for numerical results. The MATLAB software is used to compute the numerical results, which are then displayed in graphical and tabular form. The influence of several governing parameters on velocity, temperature distribution and magnetic fields in addition to the friction quantity, magnetic flux and heat transfer quantity has been explored. Computational evaluation is performed along the symmetrically heated plate to evaluate the velocity, magnetic field, and temperature together with their gradients. The selection of the magnetic force element, the buoyancy factor 0<ξ<∞ , and the Prandtl parameter range 0.1≤Pr≤7.0 were used to set the impacts of magnetic energy and diffusion, respectively. In the domains of magnetic resonance imaging (MRI), artificial heart wolves, interior heart cavities, and nanoburning systems, the present thermodynamic and magnetohydrodynamic issuesare significant.

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Section: Introduction and Literature Reviewmentioning

confidence: 99%

Magnetohydrodynamic and Thermal Performance of Electrically Conducting Fluid along the Symmetrical and Vertical Magnetic Plate with Thermal Slip and Velocity Slip Effects

et al. 2023

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“…Armaghani et al [38] studied numerically the water-alumina NF natural convection heat transfer and entropy generation in a baffled L-shaped cavity. They showed that increasing the Hartmann number reduces the entropy generation; however, the thermal performance increases.…”

Section: Introductionmentioning

confidence: 99%

A New Thermal Conductivity Model and Two-Phase Mixed Convection of CuO–Water Nanofluids in a Novel I-Shaped Porous Cavity Heated by Oriented Triangular Hot Block

et al. 2020

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This paper investigates the cooling performance of nanofluid (NF) mixed convection in a porous I-shaped electronic chip with an internal triangular hot block using Buongiorno’s two-phase model. This type of cavity and hot block geometry has not been studied formerly. The NF was assumed to be a mixture of water and CuO nanoparticles (NP) up to 4% of volume concentration. As most published mathematical models for the thermal conductivity of NF give inaccurate predictions, a new predictive correlation for effective thermal conductivity was also developed with a high accuracy compared to the experimental data. The results showed that any increase in the NP volume concentration enhances the average Nusselt number (Nu¯) and the normalized entropy generation, and reduces the thermal performance of the cavity in all orientations of the hot block. The maximum enhancement in cooling performance was 17.75% and occurred in the right-oriented hot block in the sand-based porous cavity. Furthermore, adding the NP to the base fluid leads to a more capable cooling system and enhances the irreversibility of the process.

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Entropy generation and nanofluid mixed convection in a C-shaped cavity with heat corner and inclined magnetic field

Mansour

Armaghani

Chamkha

et al. 2019

Eur. Phys. J. Spec. Top.

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Entropy generation analysis of mixed convection with considering magnetohydrodynamic effects in an open C-shaped cavity

Cited by 3 publications

References 52 publications

Magnetohydrodynamic and Thermal Performance of Electrically Conducting Fluid along the Symmetrical and Vertical Magnetic Plate with Thermal Slip and Velocity Slip Effects

Magnetohydrodynamic and Thermal Performance of Electrically Conducting Fluid along the Symmetrical and Vertical Magnetic Plate with Thermal Slip and Velocity Slip Effects

A New Thermal Conductivity Model and Two-Phase Mixed Convection of CuO–Water Nanofluids in a Novel I-Shaped Porous Cavity Heated by Oriented Triangular Hot Block

Entropy generation and nanofluid mixed convection in a C-shaped cavity with heat corner and inclined magnetic field

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