Soret and Radiation Effects on MHD Free Convection Slip Flow Over an Inclined Porous Plate with Heat and Mass Flux

2016 ◽  
Vol 8 (12) ◽  
pp. 986-995 ◽  
Author(s):  
S. Geethan Kumar ◽  
R. V. M. S. S. Kiran Kumar ◽  
G. Vinod Kumar ◽  
S. V. K. Varma
Keyword(s):  
Free Convection ◽  
Mass Flux ◽  
Radiation Effects ◽  
Slip Flow ◽  
Porous Plate

scholarly journals Entropy Optimization of Third-Grade Nanofluid Slip Flow Embedded in a Porous Sheet With Zero Mass Flux and a Non-Fourier Heat Flux Model

2020 ◽  
Vol 8 ◽  
Author(s):  
K. Loganathan ◽  
G. Muhiuddin ◽  
A. M. Alanazi ◽  
Fehaid S. Alshammari ◽  
Bader M. Alqurashi ◽  
...  
Keyword(s):  
Heat Flux ◽  
Entropy Generation ◽  
Mass Flux ◽  
Slip Flow ◽  
Porous Plate ◽  
Bejan Number ◽  
Surface Boundary ◽  
Nanoparticle Concentration ◽  
Zero Mass ◽  
Analysis Scheme

The prime objective of this article is to explore the entropy analysis of third-order nanofluid fluid slip flow caused by a stretchable sheet implanted in a porous plate along with thermal radiation, convective surface boundary, non-Fourier heat flux applications, and nanoparticle concentration on zero mass flux conditions. The governing physical systems are modified into non-linear ordinary systems with the aid of similarity variables, and the outcomes are solved by a homotopy analysis scheme. The impression of certain governing flow parameters on the nanoparticle concentration, temperature, and velocity is illustrated through graphs, while the alteration of many valuable engineering parameters viz. the Nusselt number and Sherwood number are depicted in graphs. Entropy generation with various parameters is obtained and discussed in detail. The estimation of entropy generation using the Bejan number find robust application in power engineering and aeronautical propulsion to forecast the smartness of entire system.

scholarly journals Radiation effects on unsteady MHD free convection with Hall current near an infinite vertical porous plate

2001 ◽  
Vol 26 (4) ◽  
pp. 249-255 ◽  
Author(s):  
Mohamed A. Seddeek ◽  
Emad M. Aboeldahab
Keyword(s):  
Magnetic Field ◽  
Free Convection ◽  
Radiation Effects ◽  
Porous Plate ◽  
Transverse Magnetic ◽  
Convection Flow ◽  
Suction Velocity ◽  
Electrically Conducting ◽  
Vertical Porous Plate ◽  
Effects Of Radiation

Radiation effect on unsteady free convection flow of an electrically conducting, gray gas near equilibrium in the optically thin limit along an infinite vertical porous plate are investigated in the presence of strong transverse magnetic field imposed perpendicularly to the plate, taking Hall currents into account. A similarly parameter length scale (h), as a function of time and the suction velocity are considered to be inversely proportional to this parameter. Similarity equations are then derived and solved numerically using the shooting method. The numerical values of skin friction and the rate of heat transfer are represented in a table. The effects of radiation parameter, Hall parameter, and magnetic field parameters are discussed and shown graphically.

scholarly journals Chemical reaction and radiation effects on the transient MHD free convection flow of dissipative fluid past an infinite vertical porous plate with ramped wall temperature

2011 ◽  
Vol 17 (2) ◽  
pp. 189-198 ◽  
Author(s):  
V. Rajesh
Keyword(s):  
Finite Difference ◽  
Free Convection ◽  
Chemical Reaction ◽  
Wall Temperature ◽  
Radiation Effects ◽  
Porous Plate ◽  
Convection Flow ◽  
Vertical Porous Plate ◽  
Linear Partial Differential Equations ◽  
Dissipative Fluid

A finite-difference analysis is performed to study the effects of thermal radiation and chemical reaction on the transient MHD free convection and mass transform flow of a dissipative fluid past an infinite vertical porous plate subject to ramped wall temperature. The fluid considered here is a gray, absorbing/emitting radiation but a non-scattering medium. The dimensionless governing equations are unsteady, coupled and non-linear partial differential equations. An analytical method fails to give a solution. Hence an implicit finite difference scheme of Crank-Nicolson method is employed. The effect of the Magnetic parameter (M), Chemical reaction parameter (K), Radiation parameter (F), Buoyancy ratio parameter (N), Schmidt number (Sc) on the velocity field and skin friction for both air (Pr=0.71) and water(Pr=7) in the presence of both aiding (N>0) and opposing (N<0) flows are extensively discussed with the help of graphs.

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.

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