Mixed Convection in MHD Flow and Heat Transfer Rate Near a Stagnation-Point on a Non-Linear Vertical Stretching Sheet

Fenuga, O.J.; Hassan, Anthony R.; Olanrewaju, P. O.

doi:10.2478/ijame-2020-0004

Cited by 4 publications

(6 citation statements)

References 26 publications

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“…Also, Pal et al [35] . More recently, Fenuga et al [36] demonstrated the heat transfer rate on the non-linear vertical sheet near the stagnation point. In view of these, the present work is focused on the significance of chemical reaction and thermal radiation nearby stagnation point by considering the power-law form of surface temperature T w (x) =T ∞ + cx n and surface concentration C w (x) =C ∞ + cx n .…”

Section: Discussionmentioning

confidence: 99%

Significance of chemical reaction on MHD near stagnation point flow towards a stretching sheet with radiation

Reddy¹,

Naidu²,

Babu³

et al. 2020

SN Appl. Sci.

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The influence of variable surface temperature and concentration on MHD stagnation point flow towards a stretching sheet plays an important role in wire coating, film blowing, fiber spinning and coating. In this work an attempt has been made to study the ramification of thermal radiation on MHD chemically reacting liquid past a stretching surface with nonlinear temperature and concentration. The nonlinear coupled governing equations are changed into a set of nonlinear ordinary differential equations by adopting similarity transformations. The set of nonlinear equations together with the boundary conditions are solved computationally by employing shooting technique. The influence of various flow field parameters (magnetic parameter, suction/injection parameter, velocity ratio parameter, heat absorption, radiation, chemical reaction parameter, Schmidt number) on momentum, heat measure, diffusion, skin friction coefficient, rate of heat transfer and rate of mass transfer is depicted and discussed in detail. The outcomes disclosed that the fluid temperature accelerates on rising the thermal radiation and reverse trend with heat absorption parameter. Species concentration diminishes on enhancing the chemical reaction parameter. A comparison has been made with the published results as a particular case and found to be in fair agreement. Keywords Power law form of surface temperature and concentration • MHD • Thermal radiation • Chemical reaction List of symbols B 0 Uniform magnetic field a, b, c, n Constants c fx Skin-friction coefficient c p Specific heat at constant pressure (J kg −1 K) C w (x) =C ∞ + cx n Concentration of the sheet f ′ Dimensionless velocity k Thermal conductivity of fluid (W m −1 k −1

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Section: Discussionmentioning

confidence: 99%

Significance of chemical reaction on MHD near stagnation point flow towards a stretching sheet with radiation

Reddy¹,

Naidu²,

Babu³

et al. 2020

SN Appl. Sci.

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“…Bayones et al 21 presented the MHD flow with mixed convection wityh stretching surface.Daniel et al 22 studied the mixed convection nanofluid with electrical conduction and thermal radiation. Fenuga et al 23 investigated the MHD flow with mixed convection over a nonlinear sheet. Jamaludin 24 analyzed the cross fluid with mixed convection and thermal radiation with shrinking sheet.Rehman et al 25 studied the combined effect of physical properties with mixed convection on MHD fluid over a unsteady stretching sheet.Latif et al 26 analyzed the effect of thermal radiation and mixed convection with chemical reaction over a curved stretching surface and concluded that the temperature enriches with growing thermal radiation parameter.…”

Section: Introductionmentioning

confidence: 99%

Effects of Mixed Convection and Radiation Parameter on MHD Heat Transfer Flow over a Curved Stretching Sheet

Ferdows

Murtaza

Bangalee

et al. 2022

Dhaka Univ. J. Sci.

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Objective of this study is to analysis the MHD flow over a curved stretching surface. In this model we incorporated the radiation, mixed convection and partial slip parameter. Using a curvilinear coordinate system developed a mathematical model and the system of basic governing equations are converted into ordinary differential equations with appropriate transformations. The obtained results are solved by using bvp4c solver. The numerical; results for the velocity and temperature as well as the physical quantities such as skin friction and rate of heat transfer are determined and discussed through graph. Results shown that the velocity and temperature decreases with increasing values of curvature parameter and but for magnetic parameter velocity decreases whereas temperature profile increase. Comparison with previous literature are also shown in tabular form and found excellent agreement. Dhaka Univ. J. Sci. 69(3): 171-178, 2022 (June)

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“…Ishak et al 9 reported viscous, incompressible stagnation‐point flow past a vertical stretching sheet. The mixed convective stagnation‐point flow was studied by several authors 10–12 . Mixed convective Casson fluid flow near the stagnation‐point subject to convective boundary conditions was described by Hayat et al 13 Mixed convective stagnation‐point flow on nonlinear radiative water‐based nanofluid was reported by Das et al 14 …”

Section: Introductionmentioning

confidence: 99%

“…The mixed convective stagnation-point flow was studied by several authors. [10][11][12] Mixed convective Casson fluid flow near the stagnation-point subject to convective boundary conditions was described by Hayat et al 13 Mixed convective stagnation-point flow on nonlinear radiative water-based nanofluid was reported by Das et al 14 Many processes in engineering and technology occur at high temperatures, and knowledge of radiative heat transfer becomes important for relevant equipment design, particularly many propulsion devices for satellites, aircraft, and missiles. Moreover, MHD flows with thermal radiation have applications in basic fabrication.…”

Section: Introductionmentioning

confidence: 99%

Hydromagnetic mixed convection unsteady radiative Casson fluid flow towards a stagnation‐point with chemical reaction, induced magnetic field, Soret effect, and convective boundary conditions

et al. 2022

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This article presents the two‐dimensional mixed convective MHD unsteady stagnation‐point flow with heat and mass transfer on chemically reactive Casson fluid towards a vertical stretching surface. This fluid flow model is influenced by the induced magnetic field, thermal radiation, viscous dissipation, heat absorption, and Soret effect with convective boundary conditions and solved numerically by shooting technique. The calculations are accomplished by MATLAB bvp4c. The velocity, induced magnetic field, temperature, and concentration distributions are displayed by graphs for pertinent influential parameters. The numerical results for skin friction coefficient, rate of heat, and mass transfer are analyzed via tables for different influential parameters for both assisting and opposing flows. The results reveal that the enhancement of the unsteadiness parameter diminishes velocity and induced magnetic field but it rises temperature and concentration distributions. Moreover, higher values of magnetic Prandtl number enhance Nusselt number and skin friction coefficient, but it has the opposite impact on Sherwood number. We observe that the amplitude is higher in assisting flow compared to opposing flow for skin friction coefficient and Nusselt number whereas opposite trends are noticed for Sherwood number. Our model will be applicable to various magnetohydrodynamic devices and medical sciences.

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Mixed Convection in MHD Flow and Heat Transfer Rate Near a Stagnation-Point on a Non-Linear Vertical Stretching Sheet

Cited by 4 publications

References 26 publications

Significance of chemical reaction on MHD near stagnation point flow towards a stretching sheet with radiation

Significance of chemical reaction on MHD near stagnation point flow towards a stretching sheet with radiation

Effects of Mixed Convection and Radiation Parameter on MHD Heat Transfer Flow over a Curved Stretching Sheet

Hydromagnetic mixed convection unsteady radiative Casson fluid flow towards a stagnation‐point with chemical reaction, induced magnetic field, Soret effect, and convective boundary conditions

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