Unsteady mixed convection flow in stagnation region adjacent to a vertical surface

Devi, C. D. Surma; Takhar, H. S.; Nath, G.

doi:10.1007/bf01590239

Cited by 63 publications

(62 citation statements)

References 10 publications

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“…Hassanien et al [11] extended Ramachandran's work to micropolar fluid. They considered both assisting and opposing flows, but the existence of dual solutions was not reported [12]. Devi et al extended the problem posed by Ramachandran et al [10] to the unsteady case, and they found that dual solution exists for a certain range of the buoyancy parameter when the flow is opposing.…”

Section: Introductionmentioning

confidence: 92%

Numerical Solution of MHD Flow of Micropolar Fluid with Heat and Mass Transfer towards a Stagnation Point on a Vertical Plate

Eldabe¹,

Ghaly²,

Rizkallah³

et al. 2015

AJCM

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The paper investigates the numerical solution of problem of magnetohydrodynamic (MHD) micropolar fluid flow with heat and mass transfer towards a stagnation point on a vertical plate. In this study, we consider both strong concentrations (n = 0) and weak concentrations (n = 1/2). The governing equations have been transformed into nonlinear ordinary differential equations by applying the similarity transformation and have been solved numerically by using the finite difference method (FDM) and analytically by using (DTM). The effects of various governing parameters, namely, material parameter, radiation parameter, magnetic parameter, Prandtl number, Schmidt number, chemical reaction parameter and Soret number on the velocity, microrotation, temperature and concentration have been computed and discussed in detail through some figures and tables. In order to verify the accuracy of the present results, we have compared these results with the analytical solutions by using the differential transform method (DTM) and the multi-step differential transform method (MDTM). It is observed that this approximate numerical solution is in good agreement with the analytical solution.

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Section: Introductionmentioning

confidence: 92%

Numerical Solution of MHD Flow of Micropolar Fluid with Heat and Mass Transfer towards a Stagnation Point on a Vertical Plate

Eldabe¹,

Ghaly²,

Rizkallah³

et al. 2015

AJCM

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“…They reported that heat transfer coefficients were higher than those of the wedge flow in the upper region, in contrast to the lower. Similar analyses have been made to investigate effects of unsteadiness of the flow [2], applying a fluid-saturated porous medium [3], inclination angle of the plate with respect to the flow [4], viscoelasticity of the fluid [5], and ambient stratification [6]. However, the validity of the above analyses must be challenged for practical problems, for example, when the length of the plate is finite and the position of the stagnation point is not ensured to be fixed at all, as it is when the plate might be covered by upward natural convection due to extremely strong heating.…”

Section: Introductionmentioning

confidence: 96%

Fluid flow and heat transfer of mixed convection adjacent to vertical heated plates placed in uniform horizontal flow of air

Mitsuishi

Sakai

Kitamura

et al. 2009

Heat Trans. Asian Res.

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“…Ramachandran et al [18] later investigated the laminar mixed convection in two dimensional stagnation flows around heated surfaces by considering both an arbitrary wall temperature and a varying surface heat flux. Their work was then extended by Devi et al [5] to the unsteady case and by Lok et al [15] to a vertical surface immersed in a micropolar fluid. Layek et al [14] analyzed the flow and heat transfer boundary layer stagnation-point flow of an incompressible and viscous fluid towards a heated porous stretching sheet embedded in porous media subject to suction/blowing with internal heat generation or absorption.…”

Section: Introductionmentioning

confidence: 99%

Hydromagnetic Stagnation Point Flow over a Porous Stretching Surface in the Presence of Radiation and Viscous Dissipation

Arthur¹,

Seini²

2014

ACM

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This paper investigates the hydromagnetic stagnation point flow of an incompressible viscous electrically conducting fluid towards a stretching sheet in the presence of radiation and viscous dissipation. The Newton-Raphson shooting method along with the fourth-order Runge-Kutta integration algorithm has been employed to tackle the third order, nonlinear boundary layer problem governing the flow. Numerical results for dimensionless local skin friction coefficient and the local Nusselt numbers are presented in tables while graphical results are presented for velocity and temperature profiles for various values of the controlling parameters. The results show that the heat transfer of a hydromagnetic fluid over a porous stretching surface subject to radiation and viscous dissipation can be controlled and a final product with desired characteristics can be achieved.

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Unsteady mixed convection flow in stagnation region adjacent to a vertical surface

Cited by 63 publications

References 10 publications

Numerical Solution of MHD Flow of Micropolar Fluid with Heat and Mass Transfer towards a Stagnation Point on a Vertical Plate

Numerical Solution of MHD Flow of Micropolar Fluid with Heat and Mass Transfer towards a Stagnation Point on a Vertical Plate

Fluid flow and heat transfer of mixed convection adjacent to vertical heated plates placed in uniform horizontal flow of air

Hydromagnetic Stagnation Point Flow over a Porous Stretching Surface in the Presence of Radiation and Viscous Dissipation

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