MHD Flow of a Viscous Fluid over an Exponentially Stretching Sheet in a Porous Medium

Abstract

Radiation effects on magnetohydrodynamic (MHD) boundary-layer flow and heat transfer characteristic through a porous medium due to an exponentially stretching sheet have been studied. Formulation of the problem is based upon the variable thermal conductivity. The heat transfer analysis is carried out for both prescribed surface temperature (PST) and prescribed heat flux (PHF) cases. The developed system of nonlinear coupled partial differential equations is transformed to nonlinear coupled ordinary differential equations by using similarity transformations. The series solutions for the transformed of the transformed flow and heat transfer problem were constructed by homotopy analysis method (HAM). The obtained results are analyzed under the influence of various physical parameters.

MHD radiative nanofluid flow induced by a nonlinear stretching sheet in a porous medium

“…This process has its extensive applications in oil reservoir and geothermal engineering. Magnetohydrodynamic viscous flow over an exponentially stretching surface with radiative effect in a porous medium was analyzed by Ahmed et al [22]. Shan et al [23] Analytically studied Williamson liquid film fluid flow and heat transfer in the presence of thermal radiation through a porous media over linear stretching sheet.…”

Heat transfer analysis of MHD flow due to unsteady bi-directional stretching sheet through porous space

“…Liu and Andersson [33] investigated the heat transfer characteristics over a bi-directional stretching sheet with variable thermal conditions in the presence of a temperature-dependent internal heat source (or sink). Ahmad et al [34] analyzed heat transfer characteristics for 2-D flow of a steady viscous fluid over an exponentially stretching sheet with variable thermal conductivity through porous medium in the presence of an applied magnetic field. The problem investigated in [34] is different from the present problem in many ways firstly here we have considered a 3-D flow instead of 2-D flow, secondly the flow is steady in [34] while here we have assumed an unsteady flow, thirdly in [34] a variable thermal conductivity is taken into account as the constant thermal conductivity in the present case.…”

Dual Solutions of MHD Boundary Layer Flow past an Exponentially Stretching Sheet with Non-Uniform Heat Source/Sink

“…Boundary layer flow and heat transfer characteristics of a Maxwell fluid past a continuous moving exponential surface was discussed by Abbas et al (2014). Ahmad et al (2014) analyzed the radiation and magnetic effect on the boundary layer viscous flow past an exponential stretching sheet in porous medium. The three-dimensional flow of a waterbased nanofluid past an exponential stretching surface was studied by Nadeem et al (2014).…”

“…Present study is the extension work of Ahmad et al (2014). In this study we analyzed the flow and heat transfer characteristics of MHD boundary layer flow over an exponentially stretching surface in porous medium in the presence of radiation, nonuniform heat source/sink, external pressure, suction/injection.…”