Cattaneo–Christov-based study of SWCNT–MWCNT/EG Casson hybrid nanofluid flow past a lubricated surface with entropy generation

Ahmad, Shafiq; Nadeem, Sohail

doi:10.1007/s13204-020-01367-1

Cited by 59 publications

(26 citation statements)

References 26 publications

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“…The transformed governing equations are solved by using the finite difference method based bvp4c routine (for more details see Ahmad and Nadeem 39 ). Furthermore, the velocity, entropy production, temperature, and Bejan number profiles are described in Figures 2-21.…”

Section: Resultsmentioning

confidence: 99%

“…Abbasi et al 38 numerically reported the solution of thermal radiation in the nonorthogonal stagnation-point past a lubricated surface. Ahmed et al 39 studied the mathematical model for the SWCNT-MWCNT nanoliquid on a lubricated surface. Sajid et al 40 described a third-grade fluid in a symmetrical flow closer to the stagnation point through a lubrication disc.…”

Section: Introductionmentioning

confidence: 99%

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Irreversibility analysis of radiative heat transport of Williamson material over a lubricated surface with viscous heating and internal heat source

Reddy¹,

Ali

Mahanthesh

et al. 2021

Heat Trans

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The current research explores the importance of surface lubrication and convective boundary conditions in the flow of non-Newtonian Williamson material. Rosseland radiative heat flux and viscous heating are also considered. The phenomenon of the generation or absorption of internal heat is studied. The conservation laws of momentum, mass, and energy are used to model the problem with suitable boundary conditions. With the help of appropriate transformations and the finite difference method, highly nonlinear equations of governance are solved. The influence of key parameters on Bejan number, velocity, entropy production, temperature profiles are analyzed by parametric analysis. It was found that the entropy generation rate improves due to the presence of the Rosseland radiative heat flux and the convective boundary on the lubricated surface. The sliding condition on the lubricated surface has lengthened the structure of the velocity boundary layer, while this trend is opposite to the thermal field. The dissipation due to the viscous forces of the Williamson material improves the production of entropy.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Irreversibility analysis of radiative heat transport of Williamson material over a lubricated surface with viscous heating and internal heat source

Reddy¹,

Ali

Mahanthesh

et al. 2021

Heat Trans

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“…In recent decades, the advancement of technology, enhancement in the rheological characteristics of cooling liquids, and the generation of solid-fluid suspensions called nanofluid to make heat exchangers and industrial tools and improve their thermal efficiency 21 . Many scientists have indicated, that heat transfer increased through nanofluids [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] .…”

Section: Mixed Convection Parameter ρ Fmentioning

confidence: 99%

Entropy generation and induced magnetic field in pseudoplastic nanofluid flow near a stagnant point

Hou

Hussain

Rehman

et al. 2021

Sci Rep

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In this present article the entropy generation, induced magnetic field, and mixed convection stagnant point flow of pseudoplastic nano liquid over an elastic surface is investigated. The Buongiorno model is employed in modeling. Through the use of the boundary layer idea, flow equations are transformed from compact to component form. The system of equations is solved numerically. The Induced magnetic spectrum falls near the boundary and grows further away as the reciprocal of the magnetic Prandtl number improves. The fluctuation of induced magnetic rises while expanding the values of mixed convection, thermophoresis, and magnetic parameters, whereas it declines for increment in the Brownian and stretching parameters. The velocity amplitude ascends and temperature descends for the rise in magnetic parameter. The mass transfer patterns degrade for the higher amount of buoyancy ratio while it boosts by the magnification of mixed convection and stretching parameters. Streamlines behavior is also taken into account against the different amounts of mixed convection and magnetic parameters. The pseudoplastic nanofluids are applicable in all electronic devices for increasing the heating or cooling rate in them. Further, pseudoplastic nanofluids are also applicable in reducing skin friction coefficient.

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“…In the presence of a chemical reaction, Alshomrani and Ramzan [15] explored the influence of a ferromagnetic dipole in the flow of a hybrid nanoliquid through a stretching cylinder. Ahmad and Nadeem [16] presented the hybrid Casson nanoliquid flow across a lubricated surface approaching a stagnation point with entropy generation using a simplified mathematical model. Under the impact of thermal radiation, Maskeen et al [17] demonstrated the heat transport and flow properties of an (Al 2 O 3 -Cu/H 2 O) hybrid nanoliquid across an extending cylinder.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Heat and Mass Transfer Features of Hybrid Casson Nanofluid Flow with the Magnetic Dipole Past a Stretched Cylinder

et al. 2021

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The main purpose of this research is to scrutinize the heat and mass transfer in the Casson hybrid nanofluid flow over an extending cylinder in the presence of a magnetic dipole and double stratification. The nanofluid contained chemically reactive hybrid nanoparticles (Ag, MgO) in the conventional fluids (water). The effects of viscous dissipation, radiation, and concentration stratification were taken into consideration. In the presence of gyrotactic microorganisms and the Non-Ficks Model, the flow was induced. Incorporating microorganisms into a hybrid nanofluid flow is thought to help stabilize the dispersed nanoparticles. For viscosity and thermal conductivity, experimental relations with related dependence on nanoparticle concentration were used. To acquire the nonlinear model from the boundary layer set of equations, suitable similarity transformations were employed. The built-in function bvp4c of Matlab software was utilized to solve the transformed equation numerically. The graphical results were obtained for temperature, velocity, concentration, and microorganism distribution for various parameters. The numerical amounts of drag friction, heat transport rate, and motile density number for different parameters are presented through tables. It is seen that the fluid velocity is augmented by the increase of the curvature parameter, while a decrease occurs in the fluid velocity with an increase in the magnetic and slips parameters. The comparison of the present study with previously available studies is discussed, which shows a good agreement with published results.

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Cattaneo–Christov-based study of SWCNT–MWCNT/EG Casson hybrid nanofluid flow past a lubricated surface with entropy generation

Cited by 59 publications

References 26 publications

Irreversibility analysis of radiative heat transport of Williamson material over a lubricated surface with viscous heating and internal heat source

Irreversibility analysis of radiative heat transport of Williamson material over a lubricated surface with viscous heating and internal heat source

Entropy generation and induced magnetic field in pseudoplastic nanofluid flow near a stagnant point

Analysis of Heat and Mass Transfer Features of Hybrid Casson Nanofluid Flow with the Magnetic Dipole Past a Stretched Cylinder

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