Heat generation/absorption effect on MHD flow of hybrid nanofluid over bidirectional exponential stretching/shrinking sheet

Zainal, Nurul Amira; Nazar, Roslinda Mohd.; Naganthran, Kohilavani; Pop, Ioan

doi:10.1016/j.cjph.2020.12.002

Cited by 98 publications

(34 citation statements)

References 47 publications

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“…The size of the nanoparticles is regarded to be uniform. The governing equations of the hybrid nanofluid for continuity, momentum, energy, and concentration by employing the usual boundary layer approximations are written as (Devi and Devi [47]; Zainal et al [48])…”

Section: Mathematical Modelingmentioning

confidence: 99%

Stability Analysis of Unsteady MHD Rear Stagnation Point Flow of Hybrid Nanofluid

2021

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Previous studies have reported that investigating the stagnation point flow is relevant in a variety of industrial and technological processes, including extrusion and the polymer industries. Hence, the present work aims to analyse the heat transfer performance of unsteady magnetohydrodynamics (MHD) in hybrid nanofluid and heat generation/absorption impact. The multivariable differential equations with partial derivatives are converted into a specific type of ordinary differential equations by using valid similarity transformations. The resulting mathematical model is clarified utilising the bvp4c function. The results of various control parameters were analysed, and it was discovered that increasing the nanoparticle concentration and magnetic field increases the coefficient of skin friction along the stretching/shrinking surface. The inclusion of the heat generation parameter displays an upward trend in the temperature distribution profile, consequently degrading the heat transfer performance. The findings are confirmed to have more than one solution, and this invariably leads to a stability analysis, which confirms the first solution’s feasibility.

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Section: Mathematical Modelingmentioning

confidence: 99%

Stability Analysis of Unsteady MHD Rear Stagnation Point Flow of Hybrid Nanofluid

2021

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“…In addition, the size of the nanoparticles is considered to be uniform. Now, by using the standard approximations of the boundary layer, we have [31][32][33][34][35]…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…The study of MHD in boundary layer flow is very important in the industry since its demand has continued in diverse fields of science, for instance, metallurgical procedures and petroleum production [29]. Some researches that implemented nanofluid and hybrid nanofluid as working fluid to test the effect of MHD can be reviewed in the studies by Zainal et al, [30][31], Abdel-Nour et al, [32], Armaghani et al, [33], and Ishak et al, [34].…”

Section: Introductionmentioning

confidence: 99%

Unsteady MHD Rear Stagnation-Point Flow of a Hybrid Nanofluid with Heat Generation/Absorption Effect

Zainal

Naganthran

2021

ARFMTS

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The study of unsteady flow is essential in various engineering systems, for instance, the periodic fluid motion and start-up process. Therefore, this numerical study focuses on examining the unsteady magnetohydrodynamics (MHD) rear stagnation-point flow in Al2O3-Cu/H2O hybrid nanofluid past a permeable stretching/shrinking surface with the impact of heat generation/absorption. By choosing a suitable similarity transformation, partial differential equations are transformed into a system of nonlinear ordinary differential equations and solved using the bvp4c function in the MATLAB package. The effects of the solution domain’s operating parameters are analysed, and dual solutions are observable as the sheet shrinks. It is found that the addition of the suction parameter escalates the heat transfer efficiency. Eventually, the existence of the unsteadiness parameter and the heat generation/absorption effect significantly encourage heat transfer deterioration.

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“…The form influence of MHD on Ferro-Brinkman-type nanofluids was calculated by Saqib et al 25 . The reflect of heat production and absorption on the MHD flow of hybrid nanofluids above a bidirectional exponential sheet was studied by Zainal et al 26 . An investigation of entropy production in MHD water flow over an advancing plate was explored by Abdelhameed 27 .…”

Section: Introductionmentioning

confidence: 99%

Inspection of thermal jump conditions on nanofluids with nanoparticles and multiple slip effects

Naqvi

Farooq

Waqas

et al. 2022

Sci Rep

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The significance of slip boundary conditions with thermal radiation implications on a steady flow of nano suspension over a rotating disk with a constant magnetic field is discussed in this research investigation. Here Iron oxide $$\left( {Fe_{3} O_{4} } \right)$$ F e 3 O 4 , Zirconium dioxide $$\left( {ZrO_{2} } \right)$$ Z r O 2 , and Titanium $$\left( {Ti} \right)$$ Ti are recruited as nanoparticles and water $$\left( {H_{2} O} \right)$$ H 2 O as a host fluid. The appropriate similarities transformations are used to transfer main PDEs into a system of nonlinear ODEs. The set of ODEs is then solved via shooting approach (bvp4c solver) a built-in function in MATLAB. The depictical outcomes of the physical flow parameters like thermal radiation and velocity slip parameters are revealed and clarified with the assist of figures. The slip parameter significantly reduces the velocity profiles, according to this investigation. The pressure is declined for the higher estimates of the magnetic parameter. The thermal profile was uplifted for the rising values of the thermal radiation parameter. Meteorology, meteorological, atmospheric research, biochemical engineering, power engineering, transportation production, solar energy transformations, sensing micro fabrication, tumblers in polymer manufacturing, and other fields will benefit from this suggested model. The suggested study has been developed in response to these kinds of practical consequences. This work is unique in that it investigates the consequences of a magnetic field, slip boundary conditions, and thermal radiation on nanoparticles flow across a disk. The recent study is innovative, and it could be used by other researchers to learn more about the heat exchange behavior and reliability of working fluids.

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Heat generation/absorption effect on MHD flow of hybrid nanofluid over bidirectional exponential stretching/shrinking sheet

Cited by 98 publications

References 47 publications

Stability Analysis of Unsteady MHD Rear Stagnation Point Flow of Hybrid Nanofluid

Stability Analysis of Unsteady MHD Rear Stagnation Point Flow of Hybrid Nanofluid

Unsteady MHD Rear Stagnation-Point Flow of a Hybrid Nanofluid with Heat Generation/Absorption Effect

Inspection of thermal jump conditions on nanofluids with nanoparticles and multiple slip effects

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