Hydromagnetic free convection flow past an accelerated vertical infinite plate with variable suction and heat flux

Raptis, A.; Tzivanidis, G.; Perdikis, C.

doi:10.1016/0094-4548(81)90035-7

Cited by 27 publications

(10 citation statements)

References 2 publications

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“…It has applications in the field of stellar and planetary magnetospheres, aeronautics, chemical engineering and electronics. Free convection effects on flow past an accelerated vertical plate with variable suction and a uniform heat flux in the presence of a magnetic field was studied by Raptis, Tzivanidis and Peridikis (1981). Furthermore, MHD effects on flow past an infinite vertical plate for both the classes of impulse as well as accelerated motion of the plate were studied by Raptis and Singh (1983).…”

Section: Introductionmentioning

confidence: 99%

Chemical Reaction Effects on Flow Past an Accelerated Vertical Plate with Variable Temperature and Mass Diffusion in the Presence of Magnetic Field

Muthucumaraswamy¹,

Radhakrishnan²

2012

J MECH ENG SCI

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An exact solution to the problem of unsteady hydromagnetic flow past a uniformly accelerated infinite vertical plate with variable temperature and mass diffusion are presented, taking in to account the homogeneous chemical reaction of first order. The plate temperature as well as the concentration level near the plate increased linearly with time. The dimensionless governing equations are solved using Laplace-transform technique. The velocity, temperature and concentration fields are studied for different physical parameters like thermal Grashof number, mass Grashof number, Schmidt number, Prandtl number, magnetic field parameter, chemical reaction parameter and time. It is observed that the velocity increases with increase of thermal Grashof number and mass Grashof number. It is also observed that the velocity increases with decrease of chemical reaction parameter as well as magnetic field parameter.

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Section: Introductionmentioning

confidence: 99%

Chemical Reaction Effects on Flow Past an Accelerated Vertical Plate with Variable Temperature and Mass Diffusion in the Presence of Magnetic Field

Muthucumaraswamy¹,

Radhakrishnan²

2012

J MECH ENG SCI

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“…From the technological point of view, MHD free-convection flows have also great significance for the applications in the fields of stellar and planetary magnetospheres, aeronautics chemical engineering, and electronics. The effect of magnetic field on free convection flow of electrically conducting fluids past a plate studied by many authors such as Gupta (1962), Singh and Cowling (1963), Soundalgekar (1972), Raptis et al (1981), Sacheti et al (1994), Sattar and Alam (1995), Sharma and Pankaj (1995), Sreekanth et al (2001), Singh et al (2003), Sahoo et al (2003), and Alam et al (2007a,b).…”

Section: Introductionmentioning

confidence: 97%

Thermal radiation effect on unsteady MHD free convection flow past a vertical plate with temperature‐dependent viscosity

Mahmoud

2009

Can J Chem Eng

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This article investigates the influence of radiation and temperature-dependent viscosity on the problem of unsteady MHD flow and heat transfer of an electrically conducting fluid past an infinite vertical porous plate taking into account the effect of viscous dissipation. The governing equations are converted into a system of nonlinear ordinary differential equations via a local similarity parameter which is taken as a function of time. The resulting system of coupled nonlinear ordinary differential equations is solved numerically using the fourth order Runge-Kutta integration scheme with the shooting method. The numerical results for the velocity and the temperature are displayed graphically showing the effects of various parameters. The results show that increasing the Eckert number and decreasing the viscosity of air leads to a rise in the velocity, while increasing in the magnetic or the radiation parameters is associated with a decrease in the velocity. Also, an increase in the Eckert number leads to an increase in the temperature, whereas an increase in radiation parameter leads to a decrease in the temperature.On aétudié dans cet article l'influence de la radiation et de la viscosité thermodépendante sur le problème d'écoulement MHD instable et le transfert de chaleur dans le cas d'un fluideélectriquement conducteurà travers un plateau poreux vertical infini en tenant compte de l'effet de la dissipation visqueuse. Leséquations gouvernantes ontété converties en un système d'équations différentielles ordinaires non linéaires grâceà un paramètre de similarité local considéré comme variable dans le temps. Le système d'équations différentielles ordinaires non linéaires couplées ainsi obtenu aété résolu numériquementà l'aide d'un schéma d'intégration de Runge-Kutta de quatrième ordre par la méthode de tir. Les résultats numériques de vitesse et de température sont illustrés par des graphiques montrant les effets des divers paramètres. Ces résultats montrent que l'augmentation du nombre d'Eckert et la diminution de la viscosité de l'air conduisentà une augmentation de la vitesse, tandis que l'augmentation des paramètres magnétiques ou de radiation est associéeà une diminution de la vitesse. De même, une augmentation du nombre d'Eckert conduit a une augmentation de la température, tandis qu'une augmentation du paramètre de radiation mèneà une diminution de la température.

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“…Kafousias and Raptis [5] extended the above problem to include mass transfer effects subjected to variable suction or injection. Free convection effects on flow past an accelerated vertical plate with variable suction and uniform heat flux in the presence of magnetic field was studied by Raptis al [6]. MHD effects on flow past an infinite vertical plate for both the classes of impulse as well as accelerated motion of the plate was studied by Raptis and Singh [7].…”

Section: Introductionmentioning

confidence: 99%

MHD and Radiative Flow Past an Accelerated Vertical Plate with Variable Temperature and Uniform Mass Diffusion

Muralidharan¹,

Muthucumaraswamy²

2012

IJAPM

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Hydromagnetic free convection flow past an accelerated vertical infinite plate with variable suction and heat flux

Cited by 27 publications

References 2 publications

Chemical Reaction Effects on Flow Past an Accelerated Vertical Plate with Variable Temperature and Mass Diffusion in the Presence of Magnetic Field

Chemical Reaction Effects on Flow Past an Accelerated Vertical Plate with Variable Temperature and Mass Diffusion in the Presence of Magnetic Field

Thermal radiation effect on unsteady MHD free convection flow past a vertical plate with temperature‐dependent viscosity

MHD and Radiative Flow Past an Accelerated Vertical Plate with Variable Temperature and Uniform Mass Diffusion

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