Transient MHD heat transfer and entropy generation in a microparallel channel combined with pressure and electroosmotic effects

Jian, Yongjun

doi:10.1016/j.ijheatmasstransfer.2015.05.045

Cited by 102 publications

(50 citation statements)

References 55 publications

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“…The Nsav is given as function of Ha for different emerging parameters (figures [8][9][10][11][12][13]. It is found that all the Nsav profiles have the same tendency and that two areas are identified: a zone with a low gradient of the Nsav and then a zone with an important gradient.…”

Section: Entropy Generationmentioning

confidence: 95%

Entropy generation for an axisymmetric MHD flow under thermal non-equilibrium in porous micro duct using a modified lattice Boltzmann method

Rabhi

Amami

Dhahri

et al. 2016

Journal of Magnetism and Magnetic Materials

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Section: Entropy Generationmentioning

confidence: 95%

Entropy generation for an axisymmetric MHD flow under thermal non-equilibrium in porous micro duct using a modified lattice Boltzmann method

Rabhi

Amami

Dhahri

et al. 2016

Journal of Magnetism and Magnetic Materials

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“…The entropy generation rate per unit volume is presented, which evaluates the amount of useful energy destroyed during the process, namely, the thermodynamic irreversibility of EOF [35,43,44]. SL=SH+SJ=keffT2(∂2T∂x2+∂2T∂y2)+σE2T.…”

Section: Mathematical Modelingmentioning

confidence: 99%

Thermally Fully Developed Electroosmotic Flow of Power-Law Nanofluid in a Rectangular Microchannel

Deng

2019

Micromachines

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The hydrodynamic and thermal behavior of the electroosmotic flow of power-law nanofluid is studied. A modified Cauchy momentum equation governing the hydrodynamic behavior of power-law nanofluid flow in a rectangular microchannel is firstly developed. To explore the thermal behavior of power-law nanofluid flow, the energy equation is developed, which is coupled to the velocity field. A numerical algorithm based on the Crank–Nicolson method and compact difference schemes is proposed, whereby the velocity, temperature, and Nusselt number are computed for different parameters. A larger nanoparticle volume fraction significantly reduces the velocity and enhances the temperature regardless of the base fluid rheology. The Nusselt number increases with the flow behavior index and with electrokinetic width when considering the surface heating effect, which decreases with the Joule heating parameter. The heat transfer rate of electroosmotic flow is enhanced for shear thickening nanofluids or at a greater nanoparticle volume fraction.

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“…They found that the heat transfer is stemmed mainly from the non-trivial effects of viscous dissipation. There are many useful studies on the heat-transfer characteristics of the electroosmotic flow ( [33] , [34] , [35] , [36] ). The unsteady Newtonian fluid flows over a shrinking permeable long tube with heat transfer was discussed by Elnajjar et al [37] .…”

Section: Introductionmentioning

confidence: 99%

Electroosmotic flow of generalized Burgers’ fluid with Caputo–Fabrizio derivatives through a vertical annulus with heat transfer

Elmaboud

2020

Alexandria Engineering Journal

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Applying the electric field to a fluid confined between capillary surfaces is the most recent technique used for studying the fluid movement. This technique is known as electroosmotic flow (EOF). The problem of the Caputo–Fabrizio time-fractional derivative of the electroosmotic generalized Burgers’ fluid through a vertical annulus with free convection heat transfer has been investigated. The annulus walls kept at constant values of a zeta potential. The dimensionless governing equations have been solved with the help of the Laplace and finite Hankel transforms. The inversion of Laplace for the transformed functions is calculated numerically. The essential features of the electroosmotic flow (EOF) and the related thermal characteristics are clearly illustrated by the variations in the velocity, the flow rate, the temperature and the Nusselt number. Moreover, comparisons with other non-Newtonian fluids have been discussed. It was found that the presence of the electric double layer (EDL) accelerates the fluid near the walls of the annulus, while in the core region, the reverse flow is noticed.

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Transient MHD heat transfer and entropy generation in a microparallel channel combined with pressure and electroosmotic effects

Cited by 102 publications

References 55 publications

Entropy generation for an axisymmetric MHD flow under thermal non-equilibrium in porous micro duct using a modified lattice Boltzmann method

Entropy generation for an axisymmetric MHD flow under thermal non-equilibrium in porous micro duct using a modified lattice Boltzmann method

Thermally Fully Developed Electroosmotic Flow of Power-Law Nanofluid in a Rectangular Microchannel

Electroosmotic flow of generalized Burgers’ fluid with Caputo–Fabrizio derivatives through a vertical annulus with heat transfer

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