Entropy generation in electrical magnetohydrodynamic flow of Al2O3–Cu/H2O hybrid nanofluid with non-uniform heat flux

Mumraiz, Sana; Ali, Aamir; Awais, Muhammad; Shutaywi, Meshal; Shah, Zahir

doi:10.1007/s10973-020-09603-0

Cited by 72 publications

(31 citation statements)

References 57 publications

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“…The physical quantities such as skin friction and Nusselt number for nanofluid and hybrid nanofluid are presented in this table. Also, it gives the comparison of present analysis and previously reported outcomes of Ibrahim and Shankar (2013) and Mumraiz et al (2020) for the specified cases. A reasonable correlation is attained from this comparison.…”

Section: Computational Results and Discussionmentioning

confidence: 82%

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Entropy generation analysis of electrical magnetohydrodynamic flow of TiO₂-Cu/H₂O hybrid nanofluid with partial slip

Rao

Gireesha

Gangadhar

et al. 2021

HFF

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Purpose This paper aims to address the magnetohydrodynamic boundary layer flow of hybrid mixture across a stretching surface under the influence of electric field. Design/methodology/approach The local similarity transformations are implemented to reformulate the governing partial differential equations into coupled non-linear ordinary differential equations of higher order. The numerical solutions are obtained for the simplified governing equations with the aid of finite difference technique. Findings The velocity, temperature and entropy generation are examined thoroughly for the effects of different budding parameters related to present analysis by means of graphs. It is obtained that owing to the effect of magnetic field along with slip factor, the fluid motion slowdown. However, the flow velocity enhances for the rising estimations of an electric field which tends to resolve sticky effects. Originality/value The three-dimensional plots are drawn to understand the nature of physical quantities. To ensure the precision, the obtained solutions are compared with the existing one for certain specific conditions. A good concurrence is observed between the proposed results and previously recorded outcomes.

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Section: Computational Results and Discussionmentioning

confidence: 82%

“…From all these, we come to know that heat is transformed from hot to cold region. Ibrahim and Sankar (2013) and Mumraiz et al (2020) for E 1 = 0, b = 0, l = L = 0, w 1 = 0 and w 2 = 0…”

Section: Tio 2 -Cu/h 2 O Hybrid Nanofluidmentioning

confidence: 99%

Entropy generation analysis of electrical magnetohydrodynamic flow of TiO₂-Cu/H₂O hybrid nanofluid with partial slip

Rao

Gireesha

Gangadhar

et al. 2021

HFF

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“…It was noticed that both the temperature and concentration fields decline with Prandtl number. Mumraiz et al [24] numerically analyzed influence of variable heat flux on MHD hybrid nanofluid flow caused by permeable stretching sheet with entropy optimization. It is concluded that suction and magnetic field reduce fluid flow, while it amplifies for rising magnitude of electric field, which leads to determine sticky effects.…”

Section: Introductionmentioning

confidence: 99%

Effects of Variable Transport Properties on Heat and Mass Transfer in MHD Bioconvective Nanofluid Rheology with Gyrotactic Microorganisms: Numerical Approach

et al. 2021

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Rheology of MHD bioconvective nanofluid containing motile microorganisms is inspected numerically in order to analyze heat and mass transfer characteristics. Bioconvection is implemented by combined effects of magnetic field and buoyancy force. Gyrotactic microorganisms enhance the heat and transfer as well as perk up the nanomaterials’ stability. Variable transport properties along with assisting and opposing flow situations are taken into account. The significant influences of thermophoresis and Brownian motion have also been taken by employing Buongiorno’s model of nanofluid. Lie group analysis approach is utilized in order to compute the absolute invariants for the system of differential equations, which are solved numerically using Adams-Bashforth technique. Validity of results is confirmed by performing error analysis. Graphical and numerical illustrations are prepared in order to get the physical insight of the considered analysis. It is observed that for controlling parameters corresponding to variable transport properties c2, c4, c6, and c8, the velocity, temperature, concentration, and bioconvection density distributions accelerates, respectively. While heat and mass transfer rates increases for convection parameter and bioconvection Rayleigh number, respectively.

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“…Ali et al 26 performed a numerical analysis to present the effects of hybrid nanofluid on peristaltic flow by considering TiO 2 –Cu/H 2 O hybrid nanoparticles along with slip conditions. Mumraiz et al 27 presented the entropy generation analysis in MHD flow for Al 2 O 3 –Cu/H 2 O hybrid nanoparticles. Khan et al 28 discuss the second law analysis and present the analytical results for Al 2 O 3 -Ag/H 2 O hybrid nanofluid that is influenced by induced magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Impact of thermal radiation and non-uniform heat flux on MHD hybrid nanofluid along a stretching cylinder

Ali

Kanwal

Awais

et al. 2021

Sci Rep

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The current research investigates the thermal radiations and non-uniform heat flux impacts on magnetohydrodynamic hybrid nanofluid (CuO-Fe2O3/H2O) flow along a stretching cylinder, which is the main aim of this study. The velocity slip conditions have been invoked to investigate the slippage phenomenon on the flow. The impact of induced magnetic field with the assumption of low Reynolds number is imperceptible. Through the use of appropriate non-dimensional parameters and similarity transformations, the ruling PDE’s (partial differential equations) are reduced to set of ODE’s (ordinary differential equations), which are then numerically solved using Adams–Bashforth Predictor–Corrector method. Velocity and temperature fields with distinct physical parameters are investigated and explored graphically. The main observations about the hybrid nanofluid and non-uniform heat flux are analyzed graphically. A decrease in the velocity of the fluid is noted with addition of Hybrid nanofluid particles while temperature of the fluid increases by adding the CuO-Fe2O3 particles to the base fluid. Also, velocity of the fluid decreases when we incorporate the effects of magnetic field and slip. Raise in curvature parameter γ caused enhancement of velocity and temperature fields at a distance from the cylinder but displays opposite behavior nearby the surface of cylinder. The existence of heat generation and absorption for both mass dependent and time dependent parameters increases the temperature of the fluid.

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Entropy generation in electrical magnetohydrodynamic flow of Al2O3–Cu/H2O hybrid nanofluid with non-uniform heat flux

Cited by 72 publications

References 57 publications

Entropy generation analysis of electrical magnetohydrodynamic flow of TiO₂-Cu/H₂O hybrid nanofluid with partial slip

Entropy generation analysis of electrical magnetohydrodynamic flow of TiO₂-Cu/H₂O hybrid nanofluid with partial slip

Effects of Variable Transport Properties on Heat and Mass Transfer in MHD Bioconvective Nanofluid Rheology with Gyrotactic Microorganisms: Numerical Approach

Impact of thermal radiation and non-uniform heat flux on MHD hybrid nanofluid along a stretching cylinder

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Entropy generation in electrical magnetohydrodynamic flow of Al2O3–Cu/H2O hybrid nanofluid with non-uniform heat flux

Cited by 72 publications

References 57 publications

Entropy generation analysis of electrical magnetohydrodynamic flow of TiO2-Cu/H2O hybrid nanofluid with partial slip

Entropy generation analysis of electrical magnetohydrodynamic flow of TiO2-Cu/H2O hybrid nanofluid with partial slip

Effects of Variable Transport Properties on Heat and Mass Transfer in MHD Bioconvective Nanofluid Rheology with Gyrotactic Microorganisms: Numerical Approach

Impact of thermal radiation and non-uniform heat flux on MHD hybrid nanofluid along a stretching cylinder

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Entropy generation analysis of electrical magnetohydrodynamic flow of TiO₂-Cu/H₂O hybrid nanofluid with partial slip

Entropy generation analysis of electrical magnetohydrodynamic flow of TiO₂-Cu/H₂O hybrid nanofluid with partial slip