Entropy generation in nanofluid flow due to double diffusive MHD mixed convection

Mondal, Priyajit; Mahapatra, Tapas Ray; Parveen, Rujda

doi:10.1016/j.heliyon.2021.e06143

Cited by 43 publications

(8 citation statements)

References 30 publications

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“…Hirpo 18 analysed the effects of Richradson number on Casson fluid, the Nusselt number increases in a differentially warmed lowest wavy fence. Mondal et al 19 analysed the effects of Richordson number on nanofluid flow, heat and mass transfer increases due to both natural and forced convection and observed that mixed convection phenomenon is more effective than that of natural convection.…”

Section: Introductionmentioning

confidence: 99%

Effect of Richardson number on double-diffusive mixed convective slip flow, Heat and Mass transfer of MHD Casson fluid

Nandeppanavar¹,

Kemparaju²,

Raveendra

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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An analysis of the heat and mass transfer in a mixed-convective double diffusive flow with convective boundary conditions is carried out in this paper. The governing equations are solved numerically by using Runge-Kutta method with shooting procedure with Matlab software. An accuracy of the numerical procedure has been validated through a results of the current work when compared with prior available results in the literature. The values of shear surface stress, Nusselt and Sherwood number are increasing with increasing values of Prandtl number. The effect of Biot number [Formula: see text] on flow and heat transfer are also investigated and further it is observed that friction coefficient, Nusselt number and Sherwood number are increasing due to enhancing values of Biot number. In the present paper it is noticed that the increasing in estimations of Casson parameter slowdown the heat transfer rate and accelerates mass transfer rate. The results are in good agreement with existing findings The impact of pertinent constraints on distinct flow parameters are determined and analysed through tables and graphs.

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Section: Introductionmentioning

confidence: 99%

Effect of Richardson number on double-diffusive mixed convective slip flow, Heat and Mass transfer of MHD Casson fluid

Nandeppanavar¹,

Kemparaju²,

Raveendra

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Chamkha et al 38 said that the reduction in entropy production is caused by the increment in nanoparticles. Mondal et al 39 studied the entropy generation in MHD alumina-water nanofluid numerically. The considered steady, laminar fluid flow was observed through a trapezoidal enclosure and results clearly state that Sherwood and Nusselt number decrease for nanoparticle volume fraction.…”

Section: Introductionmentioning

confidence: 99%

Entropy generation analysis for axisymmetric flow of carreau nanofluid over a horizontally stretching cylinder

Khan

Rasheed

Ahmed

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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The objective of this work is to scrutinize the entropy production and its effects on Carreau nanofluid flow over a horizontally stretching cylinder. The significant influence of magnetic field, non-linear thermal radiation and Joule heating have been studied to control the heat transfer rate. The importance of nanofluid parameters, Brownian and thermophoresis diffusion, is argued on Carreau nanofluid motion for shear-thinning and thickening behavior. Utilizing convenient transformations, the fundamental equations, devised to a nonlinear system of ordinary differential equations (ODEs), are resolved numerically by Matlab technique bvp4c. The influence of relevant parameters on velocity, Bejan number, temperature, entropy and concentration profiles are examined by virtue of graphs. Furthermore, we determine the repercussion of indistinguishable parameters over skin friction and Sherwood number via tables. From the acquired results, we perceive that entropy generation augments with enhancing magnetic field parameter, Brinkman number, curvature parameter, Eckert number, and power law index while it declines for the Brownian diffusion parameter. Also, skin friction reduces for the magnetic field and curvature parameter whereas it rises for Weissenberg number. Moreover, Sherwood number escalates for the Schmidt number and curvature parameter.

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“…Mondal et al 33 explored the entropy generation (EG) study due to MHD, double‐diffusive mixed convection (DDMC) inside a trapezoidal cavity. One of the walls of the cavity is subjected to linear heating and concentration condition.…”

Section: Introductionmentioning

confidence: 99%

Effect of the aspect ratio of the shallow enclosure and built‐in rectangular blockage on MHD double‐diffusive free convection subjugated to non‐uniform boundary conditions

Kumar

Gangawane

2022

Heat Trans

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In this study, the lattice Boltzmann method is used to explore the double‐diffusive natural convection within a shallow enclosure with a built‐in rectangular blockage at its geometric center. The enclosure is exposed to an external magnetic field. One of the enclosure walls is subjected to linearly/sinusoidal heating and concentration conditions. The rectangular blockage is at higher temperature and concentration conditions. Numerical experimentation is executed for a range of parameters such as Rayleigh number MathClass-open( 1 0 3 ≤ R a ≤ 1 0 5 MathClass-close) $(1{0}^{3}\le Ra\le 1{0}^{5})$, Lewis number MathClass-open( 2 ≤ L e ≤ 10 MathClass-close) $(2\le Le\le 10)$, buoyancy ratio MathClass-open( − 2 ≤ N ≤ 2 MathClass-close) $(-2\le N\le 2)$, aspect ratio of the enclosure MathClass-open( 2 ≤ A R ≤ 4 MathClass-close) $(2\le AR\le 4)$, aspect ratio of the built‐in blockage MathClass-open( 2 ≤ a r ≤ 4 MathClass-close) $(2\le ar\le 4)$, and Hartmann number MathClass-open( 0 ≤ H a ≤ 100 MathClass-close) $(0\le Ha\le 100)$. The working fluid is assumed to be liquid metal (sodium–potassium alloy, P r = 0.054 $Pr=0.054$). The complex interaction of flow parameters with the nonuniform heating and concentration conditions has been explored. Higher heat and mass transfer (HMT) rates are noticed for the sinusoidal temperature and concentration profile compared to linear for a given R a $Ra$. N u t o t a l $N{u}_{total}$ and S h t o t a l $S{h}_{total}$ showed enhancement by 22 % $22 \% $, and 21 % $21 \% $ for sinusoidal temperature and concentration profile of the enclosure as compared to linear for A R = 2 $AR=2$. The increase in the blockage and the enclosure aspect ratio shows augmentation in the HMT rate. The consequences of the study are also summarized in terms of empirical correlations of the N u t o t a l $N{u}_{total}$ and S h t o t a l $S{h}_{total}$ numbers showing functional dependence on the considered range of parameters.

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Entropy generation in nanofluid flow due to double diffusive MHD mixed convection

Cited by 43 publications

References 30 publications

Effect of Richardson number on double-diffusive mixed convective slip flow, Heat and Mass transfer of MHD Casson fluid

Effect of Richardson number on double-diffusive mixed convective slip flow, Heat and Mass transfer of MHD Casson fluid

Entropy generation analysis for axisymmetric flow of carreau nanofluid over a horizontally stretching cylinder

Effect of the aspect ratio of the shallow enclosure and built‐in rectangular blockage on MHD double‐diffusive free convection subjugated to non‐uniform boundary conditions

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