MHD and Radiation Effects on Mixed Convection Unsteady Flow of Micropolar Fluid Over A Stretching Sheet

Govardhan, K.; Nagaraju, G.; Kaladhar, K.; Balasiddulu, M.

doi:10.1016/j.procs.2015.07.366

Cited by 14 publications

(12 citation statements)

References 14 publications

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“…In view of these applications, many studies are focused on nonNewtonian fluid. Govardhan et al (2015) initiated the magnetohydrodynamics flow of an incompressible micropolar fluid over a stretching sheet for unsteady case. Hayat et al (2010) have initiated the effect of thermal radiation on a two-dimensional stagnation-point flow and heat transfer of an incompressible magnetohydrodynamic Carreau fluid towards a shrinking surface with convective boundary condition.…”

Section: Introductionmentioning

confidence: 99%

Flow and heat transfer of dusty hyperbolic tangent fluid over a stretching sheet in the presence of thermal radiation and magnetic field

Kumar

Gireesha

Gorla

2018

Int J Mech Mater Eng

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Background: This paper explores the impact of thermal radiation on boundary layer flow of dusty hyperbolic tangent fluid over a stretching sheet in the presence of magnetic field. The flow is generated by the action of two equal and opposite. A uniform magnetic field is imposed along the y-axis and the sheet being stretched with the velocity along the x-axis. The number density is assumed to be constant and volume fraction of dust particles is neglected. The fluid and dust particles motions are coupled only through drag and heat transfer between them. Methods: The method of solution involves similarity transformation which reduces the partial differential equations into a non-linear ordinary differential equation. These non-linear ordinary differential equations have been solved by applying Runge-Kutta-Fehlberg forth-fifth order method (RKF45 Method) with help of shooting technique. Results: The velocity and temperature profile for each fluid and dust phase are aforethought to research the influence of assorted flow dominant parameters. The numerical values for skin friction coefficient and Nusselt number are maintained in Tables 3 and 4. The numerical results of a present investigation are compared with previous published results and located to be sensible agreement as shown in Tables 1 and 2. Conclusion: It is scrutinized that, the temperature profile and corresponding boundary layer thickness was depressed by uplifting the Prandtl number. Further, an increase in the thermal boundary layer thickness and decrease in momentum boundary layer thickness was observed for the increasing values of the magnetic parameter.

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Section: Introductionmentioning

confidence: 99%

Flow and heat transfer of dusty hyperbolic tangent fluid over a stretching sheet in the presence of thermal radiation and magnetic field

Kumar

Gireesha

Gorla

2018

Int J Mech Mater Eng

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“…Fauzi et a.l [9] analyzed the effects of slip parameters A and B on a steady stagnation-point flow and heat transfer due to a shrinking sheet in a viscous and incompressible fluid by using shooting method. Govardhan et al [10], considered MHD effects on a mixed convection flow of an incompressible micro-polar fluid over a stretching sheet. There was a smooth transition from small-time solution to large-time solution.…”

Section: Introductionmentioning

confidence: 99%

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

Fenuga

Hassan

Olanrewaju³

2020

International Journal of Applied Mechanics and Engineering

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This work investigates the mixed convection in a Magnetohydrodynamic (MHD) flow and heat transfer rate near a stagnation-point region over a nonlinear vertical stretching sheet. Using a similarity transformation, the governing equations are transformed into a system of ordinary differential equations which are solved numerically using the fourth order Runge-Kutta method with shooting technique. The influence of pertinent flow parameters on velocity, temperature, surface drag force and heat transfer rate are computed and analyzed. Graphical and tabular results are given to examine the nature of the problem. The heat transfer rate at the surface increases with the mixed convection.

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“…The flow depends on the orientation of corrugations as well as the phase difference of corrugations. Govardhan et al 26 explored the effect of MHD and radiation on mixed convection unsteady flow over the stretching sheet.…”

Section: Introductionmentioning

confidence: 99%

Permeability impact on electromagnetohydrodynamic flow through corrugated walls of microchannel with variable viscosity

Rashid

Nadeem

Shahzadi

2020

Advances in Mechanical Engineering

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This investigation based on electromagnetohydrodynamic flow in microchannels through lightly corrugated walls effects is reported in the presence of variable liquid properties. In microparallel plates, we consider incompressible and electrically conducting viscous fluid. With small amplitudes, the wall corrugations are described by periodic sin waves. The governing equations are rendered dimensionless and solved with the help of the perturbation technique. The analytical solutions for velocity are obtained and analyzed graphically. A connection between flow rate and roughness is acquired by perturbation solutions of the stream function. By utilizing numerical computations, we analyzed the corrugation consequences on the velocity for electromagnetohydrodynamic flow. We graphically clarified the velocity and temperature profiles and their dependencies on all parameters. The three-dimensional velocity and contour distributions shown that the wall roughness can cause changes in the velocity distribution. For in phase the phase difference among the two corrugated walls is equals to 0°, and for out of phase the phase difference is equal to 180° between the two walls. The wave phenomenon of the flow shape becomes obvious with the expansion of the corrugation. The electromagnetohydrodynamic velocities first grow and then reduce. The electromagnetohydrodynamic velocity increases for Reynolds number, Hartmann number, and Darcy parameter. Velocity profile decreases for variable viscosity, velocity slip parameter.

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MHD and Radiation Effects on Mixed Convection Unsteady Flow of Micropolar Fluid Over A Stretching Sheet

Cited by 14 publications

References 14 publications

Flow and heat transfer of dusty hyperbolic tangent fluid over a stretching sheet in the presence of thermal radiation and magnetic field

Flow and heat transfer of dusty hyperbolic tangent fluid over a stretching sheet in the presence of thermal radiation and magnetic field

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

Permeability impact on electromagnetohydrodynamic flow through corrugated walls of microchannel with variable viscosity

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