Effect of irregular heat source/sink on the radiative thin film flow of MHD hybrid ferrofluid

Kumar, K. Anantha; Sandeep, N.; Sugunamma, V.; Animasaun, Isaac Lare

doi:10.1007/s10973-019-08628-4

Cited by 108 publications

(28 citation statements)

References 22 publications

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“…It was found that the fluid velocity decreases with an enhancement in the magnetic field parameter. Many similar studies can be found in the literature on the importance of the boundary layer flow due to starching of a surface in the presence of Lorentz force with numerous heat transfer effects …”

Section: Introductionmentioning

confidence: 67%

Physical aspects on unsteady MHD‐free convective stagnation point flow of micropolar fluid over a stretching surface

Kumar

Sugunamma

Sandeep

2019

Heat Trans. Asian Res.

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The unsteady magnetohydrodynamic (MHD) stagnation point flow of micropolar fluid across a vertical stretching surface with second-order velocity slip is the main concern of the present paper. The influence of electrical energy, temperature-dependent thermal conductivity, thermal radiation, Joule heating, and heat sink/source is investigated. The basic partial differential equations are changed into ordinary differential equations with the help of appropriate similarity variables and then solved by the fourth-order Runge-Kutta-based shooting technique. The impact of physical parameters on the velocity, microrotation, and temperature as well as friction factor, couple stress, and local Nusselt number is thoroughly explained with the support of graphs and tables. The results divulge that the heat source/sink and thermal radiation parameters have a propensity to enhance the fluid temperature. The distribution of velocity is an increasing function of an electric field and unsteadiness parameter. The numerical results are also compared with the results available in the literature. K E Y W O R D S electric field, free convection, heat transfer, stretching sheet, thermal radiation 1 | INTRODUCTION The boundary layer flow due to the stretching of a surface plays a pivotal role in the fields like biotechnology, pharmacy, and industrially. Some notable applications are wire drawing, cooling of metallic beds, plastic sheets extraction, production of polythene items, hot rolling, and so on. Those fluids which do not satisfy Newton's law of viscosity are called non-Newtonian fluids. The micropolar fluid is one special kind of non-Newtonian fluid. Currently, many researchers are interested in the exploration of non-Newtonian fluid flows across a stretching sheet due to their practical industrial demand. Toothpaste, body balms, mud, banana juice, toned milk, and surf water are some examples of non-Newtonian fluids. In 1964, Eringen 1 introduced micropolar fluid. Micropolar fluid flow induced by a stretchable surface was reported by Chiam. 2 Simultaneous solutions for the time-dependent mixed convective flow of micropolar fluid across a shrinking surface with heat and mass transfer attributes were reported by Sandeep and Sulochana. 3 A numerical exploration of the boundary layer flow of non-Newtonian fluid across a stretched surface with Lorentz force can be viewed in Ramachandran et al. 4-6 Turkyilmazoglu 7 examined in a study, the two-dimensional (2D) flow of an incompressible magnetohydrodynamic dusty fluid across a shrinking/stretching sheet in the presence of a porous medium and presented an analytical solution. Recently, Anantha Kumar et al 8 presented dual solutions for the time-dependent flow of Williamson shear-thickening liquid across a flat/curved stretched surface. It was conveyed that the Williamson liquid parameter has a proclivity to declaim the curves of the velocity.The investigation of the magnetic field has noteworthy applications in medicine, astrophysics, geology, and engineering. Magnetohydrodynamic (MHD) be...

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Section: Introductionmentioning

confidence: 67%

Physical aspects on unsteady MHD‐free convective stagnation point flow of micropolar fluid over a stretching surface

Kumar

Sugunamma

Sandeep

2019

Heat Trans. Asian Res.

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“…The structured set of non-linear partial differential equations (12-16) with boundary conditions (17)(18) are simulated analytically via homotopy analysis technique. Due to efficient and convincing accuracy, various physical problems in recent years have been solved by following this procedure.…”

Section: Solution Methodologymentioning

confidence: 99%

“…Alkanhal et al [16] involved thermal radiation and external heat source for nanofluid enclosed by a wavy shaped cavity. Kumar et al [17] discussed the thermo-physical properties of hybrid ferrofluid in thin-film flow impacted by uniform magnetic field. Bhattacharyya et al [18] evaluated the characteristics of different carbon nanotubes for coaxial movement of disks.…”

Section: Introductionmentioning

confidence: 99%

Triple Diffusive Unsteady Flow of Eyring–Powell Nanofluid Over a Periodically Accelerated Surface With Variable Thermal Features

Khan¹,

Vaidya²,

Chammam³

et al. 2020

Front. Phys.

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This research communicates the triple diffusion perspective of Eyring-Powell nano-materials configured by a periodically moving configuration. The thermal consequences of variable natures are utilized as a novelty. Combined magnetic and porous medium effects are also involved, which result in a magneto-porosity parameter. The thermophoretic and Brownian motion aspects are reported by using Buongiorno's nanofluid theory. The formulated flow equations in non-dimensional forms are tackled with the implementation of a homotopy analysis algorithm. A detailed physical investigation against derived parameters is presented graphically. Due to periodically accelerated surface, the oscillations in velocity and wall shear stress have been examined.

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“…The electrically conducting thin film Maxwell flow toward a deformable rotating disk under the influence of irregular heat absorption or generation is disclosed by Ahmed et al 14 Ahmed et al 15 examined the stagnation point flow of non‐Newtonian (Maxwell) nanoliquid across a penetrable stretching or shrinking revolving disk. The flow generated by revolving permeable disk in a Maxwell liquid with the influence of nonlinear radiative heat, Joule heating as well as vertical magnetic field is investigated by Ahmed et al 16 The influence of irregular heat on the fabricated film flow related to a hybrid ferrofluid with magnetic field and radiation is examined by Anantha Kumar et al 17 and Iskander et al 18…”

Section: Introductionmentioning

confidence: 99%

Heat and mass transfer in MHD Casson nanofluid flow past a stretching sheet with thermophoresis and Brownian motion

et al. 2020

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The foremost objective of the current article is to explore the impact of Brownian motion on magnetohydrodynamic Casson nanofluid flow toward a stretching sheet in the attendance of nonlinear thermal radiation. The combined heat and mass transfer characteristics are investigated. The influence of chemical reaction, nonuniform heat source/sink, Soret, and Dufour is deemed. The convective boundary condition is taken. The appropriate transformations are utilized to transform the flow regulating partial differential equations into dimensionless ordinary differential equations (coupled). The numerical outcomes of the converted nonlinear system are solved by the Runge-Kutta based Shooting procedure. Results indicate that the temperature is an increasing function of both thermophoresis and Brownian motion parameters. The concentration of the fluid and the corresponding boundary layer thickness reduces with an enhancement in Lewis number.

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Effect of irregular heat source/sink on the radiative thin film flow of MHD hybrid ferrofluid

Cited by 108 publications

References 22 publications

Physical aspects on unsteady MHD‐free convective stagnation point flow of micropolar fluid over a stretching surface

Physical aspects on unsteady MHD‐free convective stagnation point flow of micropolar fluid over a stretching surface

Triple Diffusive Unsteady Flow of Eyring–Powell Nanofluid Over a Periodically Accelerated Surface With Variable Thermal Features

Heat and mass transfer in MHD Casson nanofluid flow past a stretching sheet with thermophoresis and Brownian motion

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