scholarly journals Heat and Mass Transfer Effect on MHD Flow of a Viscoelastic Fluid through a Porous Medium Bounded by an Oscillating Porous Plate in Slip Flow Regime

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
S. N. Sahoo
Keyword(s):  
Mass Transfer ◽  
Skin Friction ◽  
Flow Regime ◽  
Heat And Mass Transfer ◽  
Slip Flow ◽  
Porous Plate ◽  
Elastic Parameter ◽  
Regular Perturbation ◽  
Mass Transfer Effect ◽  
Slip Flow Regime

Unsteady flow of an eclectically conducting and incompressible viscoelastic liquid of the Walter model with simultaneous heat and mass transfer near an oscillating porous plate in slip flow regime under the influence of a transverse magnetic field of uniform strength is presented. The governing equations of the flow field are solved by a regular perturbation method for small elastic parameter, and the expressions for the velocity, temperature, concentration, skin friction , the heat flux in terms of the Nusselt number , and the rate of mass transfer in terms of the Sherwood number are obtained. The effects of the important flow parameters on the dynamics are discussed. Findings of the study reveal that the rarefaction parameter accelerates the fluid particles in the flow domain. Elastic parameter contributes to sudden fall of the velocity near the plate. Magnetic force contributes to greater skin friction as the time elapses. Destructive reaction reduces, whereas generative reaction enhances the concentration distribution.

Thermo Diffusion Effects on MHD Chemically Reacting Fluid Flow Past an Inclined Porous Plate in a Slip Flow Regime

2018 ◽  
Vol 387 ◽  
pp. 587-599 ◽  
Author(s):  
R. Jayakar ◽  
B. Rushi Kumar ◽  
Oluwole Daniel Makinde
Keyword(s):  
Mass Transfer ◽  
Differential Equations ◽  
Flow Regime ◽  
Radiation Effects ◽  
Slip Flow ◽  
Porous Plate ◽  
Flow Parameters ◽  
Flow Past ◽  
Slip Flow Regime ◽  
Chemically Reacting

The investigation is undertaken to study the thermal diffusion and radiation effects on unsteady MHD heat and mass transfer flow past a semi-infinite inclined porous plate embedded in a porous medium in a slip flow regime with variable suction in the presence of first order chemically reaction. The analytical solutions for velocity, temperature and concentration fields are obtained by reducing the governing nonlinear coupled partial differential equations in dimensionless form into a system of ordinary differential equations, using perturbation method. The effect of pertinent flow parameters on velocity, temperature, concentration, the skin friction, the rate of heat transfer and the rate of mass transfer are studied graphically.

scholarly journals Thermal diffusion and chemical reaction effects on unsteady flow past a vertical porous plate with heat source dependent in slip flow regime

2016 ◽  
Vol 13 (1) ◽  
pp. 51-62 ◽  
Author(s):  
Narasu Siva Kumar ◽  
Rushi Kumar ◽  
A. G. Vijaya Kumar
Keyword(s):  
Fluid Flow ◽  
Heat Source ◽  
Flow Regime ◽  
Thermal Diffusion ◽  
Chemical Reaction ◽  
Slip Flow ◽  
Porous Plate ◽  
Stream Velocity ◽  
Vertical Porous Plate ◽  
Slip Flow Regime

The present study investigates an analytical solution of free convective unsteady fluid flow in presence of thermal diffusion and chemical reaction effects past a vertical porous plate with heat source dependent in slip flow regime. The plate is assumed to move with a constant velocity in the direction of fluid flow, while free stream velocity is assumed to follow exponentially increasing small perturbation law. The velocity, temperature and concentration profiles are presented graphically for different values of the parameters entering into the problem. Finally the effects of pertinent parameters on the skin friction coefficient, Nusselt number and Sherwood numbers distributions are derived and have shown through graphs and tables by using perturbation technique.

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