Unsteady hydromagnetic free-convection flow with radiative heat transfer in a rotating fluid

Bestman, A. R.; Adjepong, S. K.

doi:10.1007/bf00636756

Cited by 70 publications

(36 citation statements)

References 11 publications

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“…Study of influence of Coriolis force on hydromagnetic natural convection flow is significant because of several geophysical and fluid engineering problems are governed by interaction of Coriolis force and electromagnetic force. Keeping in view the importance of such study Bestman and Adjepong (1988) investigated unsteady hydromagnetic free convection flow near a moving infinite flat plate in a rotating medium with radiating heat transfer. Mbeledogu and Ogulu (2007) obtained analytical closed form solution of unsteady hydromagnetic natural convection flow of a rotating, incompressible, viscous Boussinesq fluid in the presence of radiative heat transfer and first order chemical reaction.…”

Section: Frontiers In Heat and Mass Transfermentioning

confidence: 99%

Unsteady Hydromagnetic Heat and Mass Transfer Natural Convection Flow Past an Exponentially Accelerated Vertical Plate With Hall Current and Rotation in the Presence of Thermal and Mass Diffusions

Singh¹,

Joshi²,

Begum³

et al. 2016

Frontiers in Heat and Mass Transfer

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In the present analytical study, we have considered unsteady hydromagnetic heat and mass transfer natural convection flow of an electrically conducting, heat absorbing and chemically reacting fluid past an exponentially accelerated vertical plate in a uniform porous medium taking Hall current and rotation into account. The species concentration near the plate is considered to be varies linearly with time. Two particular cases for plate temperature are considered i.e. (i) plate temperature is uniform and (ii) plate temperature varies linearly with time and after some time it is maintained at uniform temperature. The coupled partial differential equations governing the fluid flow problem are solved analytically for fluid velocity, temperature and species concentration using Laplace transform method. To examine the physical characteristic of this problem the graphs for velocity, temperature, species concentration, skin friction, Nusselt number and Sherwood number distributions are computed and generated for various values of different pertinent flow parameters. It is observed that for small thermal diffusion, the free stream value of velocity and temperature are achieved nearer to the plate in comparison to that for large thermal diffusion.

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Section: Frontiers In Heat and Mass Transfermentioning

confidence: 99%

Unsteady Hydromagnetic Heat and Mass Transfer Natural Convection Flow Past an Exponentially Accelerated Vertical Plate With Hall Current and Rotation in the Presence of Thermal and Mass Diffusions

Singh¹,

Joshi²,

Begum³

et al. 2016

Frontiers in Heat and Mass Transfer

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“…This provoked quite a lot of researchers to carry out a capacious volume of research works on unsteady hydromagnetic rotating flow near a vertical plate under various conditions. Mentions may be made of the research works of Singh (1984), Raptis and Singh (1985), Bestman and Adjepong (1988), Mbeledogu and Ogulu (2007).…”

Section: Introductionmentioning

confidence: 99%

Effect of Hall Current on MHD Natural Convection Heat and Mass Transfer Flow of Rotating Fluid Past a Vertical Plate With Ramped Wall Temperature

Seth¹,

Bhattacharyya²,

Tripathi³

2017

Frontiers in Heat and Mass Transfer

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A study on unsteady MHD natural convection flow of an optically thin, heat radiating, incompressible, viscous, chemically reactive, temperature dependent heat absorbing and electrically conducting fluid past an exponentially accelerated infinite vertical plate having ramped temperature, embedded in a porous medium is carried out, considering the effects of Hall current and rotation. Governing equations are non-dimensionalized and Laplace Transform Technique is used to find the exact solutions for non-dimensional velocity, temperature and concentration fields. The quantities of physical interest i.e. shear stress at the plate, rate of heat and mass transfers at the plate are also derived. Numerical results for the velocity, temperature and species concentration of the fluid are demonstrated with the help of graphs whereas those of shear stress at the plate, rate of heat and mass transfers at the plate are displayed in tables for various flow parameters. It is observed that fluid velocities as well as fluid temperature profiles are slower in case of ramped temperature plate than those of isothermal plate.

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“…The effect of a uniform transverse magnetic field on the unsteady transient free convection flow of an incompressible viscous electrically conducting fluid between two infinite vertical parallel plates with constant temperature was studied by Rajput and Sahu [8]. Bestman and Adjepong [9] discussed the magnetohydrodynamic free convection flow, with radiative heat transfer, past an infinite moving plate in rotating incompressible, viscous, and optically transparent medium. Sandeep and 2 International Journal of Engineering Mathematics Sugunamma [10] analyzed effects inclined magnetic field on unsteady free convective flow of a dissipative fluid past a vertical plate.…”

Section: Introductionmentioning

confidence: 99%

Aligned Magnetic Field, Radiation, and Rotation Effects on Unsteady Hydromagnetic Free Convection Flow Past an Impulsively Moving Vertical Plate in a Porous Medium

Sandeep

Sugunamma

Penem

2014

International Journal of Engineering Mathematics

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We analyse the effects of aligned magnetic field, radiation, and rotation on unsteady hydromagnetic free convection flow of a viscous incompressible electrically conducting fluid past an impulsively moving vertical plate in a porous medium in presence of heat source. An exact solution of the governing equations in dimensionless form is obtained by Laplace transform technique in ramped temperature case. To compare the results obtained in this case with that of isothermal plate, the exact solution of the governing equations is also obtained for isothermal plate and results are discussed graphically in both ramped temperature and isothermal cases.

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Unsteady hydromagnetic free-convection flow with radiative heat transfer in a rotating fluid

Cited by 70 publications

References 11 publications

Unsteady Hydromagnetic Heat and Mass Transfer Natural Convection Flow Past an Exponentially Accelerated Vertical Plate With Hall Current and Rotation in the Presence of Thermal and Mass Diffusions

Unsteady Hydromagnetic Heat and Mass Transfer Natural Convection Flow Past an Exponentially Accelerated Vertical Plate With Hall Current and Rotation in the Presence of Thermal and Mass Diffusions

Effect of Hall Current on MHD Natural Convection Heat and Mass Transfer Flow of Rotating Fluid Past a Vertical Plate With Ramped Wall Temperature

Aligned Magnetic Field, Radiation, and Rotation Effects on Unsteady Hydromagnetic Free Convection Flow Past an Impulsively Moving Vertical Plate in a Porous Medium

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