Effect of Hall Current on Unsteady MHD Couette Flow and Heat Transfer of Nanofluids in a Rotating System

Ali, Ahmada Omar; Makinde, Oluwole Daniel; Nkansah-Gyekye, Yaw

doi:10.11648/j.acm.20150404.12

Cited by 11 publications

(1 citation statement)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There have been increasing interests in the study of effect of Coriolis force and/or magnetic parameters on hydrodynamic flow over a (stretching/shrinking) sheet in the recent years due to its several applications in geophysical and astrophysical problems, fluid engineering, extrusion of a polymer in a melt spinning process, manufacturing of plastic films, wire drawing, hot rolling, centrifugal bioreactor, and glass fiber production (Mishra and Jena 2014, Suresh and Manglik 2014, Ali et al 2015. Mitteilungen (1972) analyzed the unsteady induced hydromagnetic convective free flow in a semi-infinite body of an incompressible fluid bounded by an infinite rigid body undergoing rotation with an angular velocity and investigated the simultaneous effects of Coriolis force and rotation on the hydromagnetic flow.…”

Section: Background Informationmentioning

confidence: 99%

Exploration of Coriolis force on motion of air over the upper horizontal surface of a paraboloid of revolution

et al. 2020

View full text Add to dashboard Cite

The significance of Coriolis force on the flow of air across a surface in rotating frame of reference is of prime importance in Astrophysics, Stellar dynamics, oceanography, meteorology and dynamo theory by influencing the movement of fluid upon the surface of the Earth. Sequel to the importance of Newtonian fluids (i.e. air and water), it is worthwhile to investigate the influence of Coriolis force on such flow. This is necessary due to the fact that Coriolis force is the only explanation for how the air heated by the Sun reaches the Earth. The significance of rotational force on the flow of Newtonian fluids over an upper horizontal surface of a paraboloid of revolution is investigated. The flows are modeled by incorporating the Coriolis term into the body forces of Navier–Stokes equations to obtain appropriate equations for the fluids. The governing equations is nondimensionalized using appropriate Blasius similarity variables to reduce the nonlinear partial differential equations to nonlinear ordinary differential equations. The resulting system of nonlinear ordinary differential equations is solved using Runge–Kutta–Gills method with Shooting technique and the results is depicted graphically. With an increase in Coriolis force, the horizontal velocity, the vertical velocity and the shear stress near the wall decrease while the temperature distribution is an increasing property.

show abstract

Section: Background Informationmentioning

confidence: 99%

Exploration of Coriolis force on motion of air over the upper horizontal surface of a paraboloid of revolution

et al. 2020

View full text Add to dashboard Cite

show abstract

Hall effects on MHD couple stress fluid flow through a vertical microchannel subjected to heat generation: A numerical study

Roja

Gireesha

2020

Heat Trans

View full text Add to dashboard Cite

The present study analyzes the irreversibility in an electrically conducting couple stress fluid between two vertical channel plates with the aspects of exponential space and temperature-dependent, radiative heat flux, heat generation, and Joule heating. A reduced system of the governing equations is obtained via applying suitable nondimensional variables. To determine the solutions of velocity, thermal field, irreversibility, and irreversibility ratio, the Runge-Kutta-Fehlberg method along with the shooting technique has been employed. The various pertinent parameters that are involved in the problem have been discussed in detail through graphs. The results show that the entropy production can improve with the viscous dissipation, Joule heating, exponential space and temperature-dependent, and radiative heat flux. Furthermore, it is clear that the entropy enhances with wall ambient temperature difference, radiation parameter, and the effect is reversed with higher estimations of the fluid wall interaction parameter, couple stress parameter, and rarefaction. The present numerical results are compared with the existing results that are in good agreement.

show abstract

Impact of Hall Current on the Entropy Generation of Radiative MHD Mixed Convection Casson Fluid

Opanuga

Adesanya

Okagbue

et al. 2020

Int. J. Appl. Comput. Math

View full text Add to dashboard Cite

Effect of Hall Current on Unsteady MHD Couette Flow and Heat Transfer of Nanofluids in a Rotating System

Cited by 11 publications

References 21 publications

Exploration of Coriolis force on motion of air over the upper horizontal surface of a paraboloid of revolution

Exploration of Coriolis force on motion of air over the upper horizontal surface of a paraboloid of revolution

Hall effects on MHD couple stress fluid flow through a vertical microchannel subjected to heat generation: A numerical study

Impact of Hall Current on the Entropy Generation of Radiative MHD Mixed Convection Casson Fluid

Contact Info

Product

Resources

About