MHD forced convection and entropy generation of CuO-water nanofluid in a microchannel considering slip velocity and temperature jump

Abbaszadeh, Mahmoud; Ababaei, Ahmad; Arani, Ali Akbar Abbasian; Sharifabadi, Ali Abbasi

doi:10.1007/s40430-016-0578-7

Cited by 60 publications

(32 citation statements)

References 35 publications

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“…The study by Chamkha [37] found that an increase in nanoparticles led to a decline in entropy generation. Decrease in the temperature gradients in the wall, in the analysis carried out by Abbaszadeh et al [38], was observed to cause decrease in the entropy generation. In their study of entropy generation in a porous square enclosure, Chamkha et al [39] considered partial slip.…”

Section: Introductionmentioning

confidence: 92%

Entropy generation in MHD nanofluid flow with heat source/sink

Tlau

Ontela

2019

SN Appl. Sci.

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This work investigates the generation of entropy in the presence of a heat source/sink in a sloping channel filled with porous medium in magnetohydrodynamic nanofluid flow. The regulating equations are nonlinear and coupled thermal and hydrodynamic equations. Homotopy analysis method is used in the handling of equations. Comparisons with existing literature have been produced and were discovered to be in excellent accord, which are a particular situation of the present issue. The impact on entropy generation, Bejan number, Nusselt number and skin friction of pertinent fluid parameters is addressed, developed and displayed graphically. Entropy generation was found to be minimum just above the center of the channel throughout the study. Skin friction and Nusselt number were found to be higher for the case of heat generation than heat absorption.

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Section: Introductionmentioning

confidence: 92%

Entropy generation in MHD nanofluid flow with heat source/sink

Tlau

Ontela

2019

SN Appl. Sci.

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“…Their results highlighted the variation of Nusselt number and entropy generation due to inclination angle and became significant for higher values of Rayleigh number and Darcy number. Abbaszadeh et al [31] considered slip velocity and temperature jump boundary conditions to investigate the effect of magnetic field on flow field, heat transfer and entropy generation of nanofluid through a microchannel. They observed the heat transfer rate and total irreversibility are increasing functions of Reynolds number, Hartmann number, volume fraction, and minimum entropy generation with higher Knudsen number.…”

Section: Introductionmentioning

confidence: 99%

MHD natural convection and entropy generation in a grooved enclosure filled with nanofluid using two-component non-homogeneous model

2020

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In this paper, a computational study of natural convection in a grooved enclosure filled with water-based nanofluid in the presence of external magnetic field is numerically investigated. Two-component non-homogeneous model is introduced to develop the governing partial differential equations. Galerkin finite element method is used to solve the governing equations. The computation is carried out for a wide range of governing parameters such as Rayleigh number (10 3 ≤ Ra ≤ 10 6), magnetic field parameter (10 ≤ Ha ≤ 100) and volume fraction of nanoparticles (0% ≤ ϕ ≤ 5%) with fixed values of remaining parameters. A detailed parametric analysis is performed to show the effects of physical parameters on the fluid flow and temperature distributions within the enclosure via streamlines, isotherms, isoconcentrations, midsectional velocities, average Nusselt number and temperature, respectively. In addition, the entropy generation and Bejan number are also computed and discussed elaborately. The results of the current study are compared to those of previous numerical and experimental studies and found to be in rational agreements. The results ascertain that the average Nusselt number and entropy generation increase with rising Rayleigh number and nanoparticle volume fraction, whereas they decrease with increasing magnetic field strength. Moreover, it is found that the appropriate combination of governing parameters can maximize the heat transfer rate and minimize the entropy generation as well.

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“…Yang et al demonstrated the numerical optimization of the 3D incompressible laminar ﬂow of a trapezoidal microchannel heat sink using entropy generation minimization. Heat transfer and entropy generation analysis of MHD nanofluid flow in a parallel plate microchannel was investigated by Abbaszadeh et al The MHD heat transfer and entropy generation in the transport of nanofluid through a porous vertical microchannel, in the presence of nonlinear radiative heat flux, was numerically investigated by Lopez et al In this context, various authors have explored the heat transfer of fluid at microscale with different aspects …”

Section: Introductionmentioning

confidence: 99%

Brinkman‐Forchheimer slip flow subject to exponential space and thermal‐dependent heat source in a microchannel utilizing SWCNT and MWCNT nanoliquids

Shehzad

Mahanthesh

Gireesha

et al. 2019

Heat Trans. Asian Res.

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This communication examines the impact of carbon nanotubes (single-wall carbon nanotubes [SWCNT] and multi-wall carbon nanotubes [MWCNT]) on magnetohydrodynamic Brinkman and Forchheimer flow in a planar microchannel with multiple slips. Flow through a porous medium is modeled via Brinkman and Forchheimer theory. The impacts of thermal-dependent heat source (THS) and exponential space-dependent heat source (ESHS) are deployed. Aspects of Joule and viscous dissipations are also retained. The dimensionless equations are solved using the Runge-Kutta-Fehlberg joint with shooting methodology. The significance of various nondimensional parameters on the flow distributions as well as skin-friction and Nusselt number is illustrated and analyzed. Closed form solution of momentum quantity is developed for a particular case. Obtained numerical results are in perfect agreement with analytical results. Further, the results of SWCNT and MWCNT are compared. K E Y W O R D S Brinkman-Forchheimer model, carbon nanofluid, carbon nanotubes, exponential heat source, Joule heating, microchannel Heat Transfer-Asian Res. 2019;48:1688-1708. wileyonlinelibrary.com/journal/htj 1688 |

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MHD forced convection and entropy generation of CuO-water nanofluid in a microchannel considering slip velocity and temperature jump

Cited by 60 publications

References 35 publications

Entropy generation in MHD nanofluid flow with heat source/sink

Entropy generation in MHD nanofluid flow with heat source/sink

MHD natural convection and entropy generation in a grooved enclosure filled with nanofluid using two-component non-homogeneous model

Brinkman‐Forchheimer slip flow subject to exponential space and thermal‐dependent heat source in a microchannel utilizing SWCNT and MWCNT nanoliquids

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