Numerical simulation of liquid metal MHD flows in a conducting rectangular duct with triangular strips

Yang, Lu; Mei, Jie; Xiong, Baolong

doi:10.1016/j.fusengdes.2020.112152

Cited by 10 publications

(3 citation statements)

References 21 publications

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“…Magnetohydrodynamics (MHD) or hydromagnetics is the behavior analysis of electrically conducting fluids under the application of a magnetic field. Numerous researchers [1][2][3][4] have worked on MHD for engineering applications. Rashad 5 conducted a quantitative study of the impact of radiation on the MHD natural convection of a Newtonian fluid moving across a vertical flat plate.…”

Section: Introductionmentioning

confidence: 99%

Assessment of heat transfer in large parallel plates with a narrow gap maintained at a constant temperature

et al. 2023

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Investigations are conducted on electromagnetohydrodynamic (EMHD) flow and heat transfer in a third‐grade fluid flowing through large parallel plates, which are maintained at constant temperatures. The impact of convective heat transmission is disregarded since the space between the plates is small. The influence of viscous dissipation is considered. Despite being addressed for Newtonian fluids, the conduction problem with the viscous dissipation effect is not examined in third‐grade fluids for EMHD flow and heat transfer behavior. The least‐square method is adopted to solve nondimensional, nonlinear momentum and energy conservation equations to get the dimensionless velocity, temperature distribution, and heat flux. Temperature and heat flux are investigated in relation to the third‐grade fluid parameter, the Hartmann number, the electric field parameter, and the Brinkman number. The findings show a rise in the Brinkman number dramatically increases heat transfer from both walls, necessitating cooling of both plates. The heat flow from both walls increases as the parameters of third‐grade fluid increases.

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Section: Introductionmentioning

confidence: 99%

Assessment of heat transfer in large parallel plates with a narrow gap maintained at a constant temperature

et al. 2023

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“…In parallel with these studies many theoretical and numerical investigations of MHD, EHD and also EMHD transport have been reported in recent years in ever widening application. MHD simulations include El-Genk and Paramonov [5] (on nuclear electromagnetic pumps), Tixador [6] (on naval magnetic drive propulsion), Shamshuddin et al [7] (on time-dependent micromorphic coating synthesis), Yang et al [8] (on liquid metal duct processing), Bég et al [9] (seawater MHD generators [10]). EHD analyses include Hollinger and Kennis [11] (electrohydrodynamic-jet (e-jet) printing), Nishihara et al [12] (electrical field control of magnetic hypersonic shock waves), Mandal et al [13](perturbation analysis of leaky dielectric suspended drop rheology under a uniform electric field), Oddy et al [14] (microfluidic bioanalytical applications), Narla et al [15] (bio-inspired pumping of electromagnetic fuels), Meighan et al [16] (dielectrophoresis and electric field gradient focusing in medicine), Bhandari et al [17] (rhythmic propulsion of magnetic fluids).…”

Section: Introductionmentioning

confidence: 99%

Emhd Casson Hybrid Nanofluid Flow Over an Exponentially Accelerated Rotating Porous Surface

Tripathi¹,

Prakash

Osman

et al. 2022

J Por Media

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The influence of Coriolis body force, electro-magnetohydrodynamics (EMHD) and thermal radiative heat transfer on the Casson hybrid mixed convection nanofluid driven by an exponentially accelerated plate adjacent to a porous medium in a rotating system is analyzed. Hybrid (Ag-Al2O3) and Al2O3 nanofluids are considered with ethylene glycol (EG) base fluid. The Maxwell-Garnett model has been deployed to derive the thermal conductivity of the hybrid nanofluid. The electrical potential problem is simplified by applying Debye-Hückel linearization. The Laplace transform method (LTM) is employed to derive closed-form solutions. In terms of heat transfer, the hybrid nanofluid (Ag-Al2O3)/EG and nanofluid (Al2O3)/EG performance are compared. The benefits of EG-based hybrid nanofluid (Ag-Al2O3) relative to EG based (Al2O3) nanofluid, are elaborated. The analysis finds applications in centrifugal dynamic electrochromatography under electromagnetic gradient, bio-analytical separation techniques with electric field gradients and rotary bio-inspired DC electromagnetic blood pumps.

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“…Keeping in view such facts, various investigations have been done by researchers during different flows. Yang et al (2021) examined MHD flow of liquid metals through numerical simulations. Soret and dufour, Hall and MHD effects in flow by an accelerated surface subjected to rotation is expressed by Kumar et al (2021).…”

Section: Introductionmentioning

confidence: 99%

Joule heating in squeezed flow of hybrid nanomaterial via FDM with Cattaneo–Christov (C–C) heat flux

Muhammad

Hayat

Ahmad

2022

HFF

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Purpose This study aims to explore the combined impacts of velocity and thermal slips on hybrid nanomaterial (GO+Ag+kerosene oil) bounded between two parallel infinite walls (plates). Both the walls are separated by a distance. The upper wall is subjected to squeezing with velocity, while the lower wall stretches with velocity. A uniform magnetic field acts normally to the flow. Moreover, heat transmission is analyzed in the presence of Joule heating. Heat transport characteristics are investigated by imposing the Cattaneo–Christov (C–C) heat flux model. The behavior of velocities, skin friction and temperature under sundry variables are examined graphically. Design/methodology/approach The obtained partial differential equations (PDEs) related to the considered problem are nondimensionalized by choosing appropriated variables. These nondimensional PDEs are then solved by the numerical technique, finite difference method (FDM). For implementation of this method, the obtained nondimensional PDEs are converted into finite difference equations (FDEs) using forward difference (FD) toolkits. Findings Velocity of the hybrid nanomaterial decreases with higher Hartman number and velocity slip parameter, while it increases with increase in Reynolds and squeezing numbers. Temperature of the hybrid nanomaterial increases for large Hartman number, Eckert number and squeezing parameter, while it is reduced by higher thermal slip parameter, thermal relaxation time parameter and nanoparticle volume fractions for graphene oxide (GO) and silver (Ag). Skin friction is controlled through higher Reynolds number, while it intensifies with nanoparticle volume fractions for GO and Ag. Originality/value Here, the authors have investigated 2D flow of hybrid nanomaterial bounded between two parallel walls. The lower and upper walls are subjected to stretching and squeezing, respectively. The authors guarantee that all outcomes and numerical technique (FDM) results are original, neither submitted nor published in any journal before.

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Numerical simulation of liquid metal MHD flows in a conducting rectangular duct with triangular strips

Cited by 10 publications

References 21 publications

Assessment of heat transfer in large parallel plates with a narrow gap maintained at a constant temperature

Assessment of heat transfer in large parallel plates with a narrow gap maintained at a constant temperature

Emhd Casson Hybrid Nanofluid Flow Over an Exponentially Accelerated Rotating Porous Surface

Joule heating in squeezed flow of hybrid nanomaterial via FDM with Cattaneo–Christov (C–C) heat flux

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