Combined effects of Hall currents and rotation on MHD mixed convection in a rotating vertical channel have been studied. The governing equations are solved analytically in closed form. The effects of the various parameters on the velocity field, shear stresses, temperature field and the rate of heat transfer in terms of their amplitudes and tangent of phases are presented graphically. It is obs...

The aim of present paper is to study the series solution of time dependent MHD second grade incompressible nanofluid towards a stretching sheet. The effects of mixed convection and thermal radiation are also taken into account. Because of nanofluid model, effects Brownian motion and thermophoresis are encountered. The resulting nonlinear momentum, heat and concentration equations are simplified...

The nonlocal, non-diiusive transport of passive scalars in turbulent MHD convection is investigated using tran-silient matrices, which describe the "probability" that a tracer particle beginning at one position in a ow will be advected to another position after some time. We present a new method for calculating these matrices from simulation data which involves following the trajectories of pas...

The present study investigates the mixed convective MHD flow of Newtonian fluid along an inclined permeable plate which is saturated in porous medium. A non-uniform magnetic field with viscous dissipation and thermal radiation also considered model. Velocity slip conditions are applied at plate. Expressions for skin friction Nusselt number obtained help suitable similarity transformation. Gover...

The effect of heat source/sink on steady two-dimensional laminar MHD mixed convection boundary layer flow past a vertical permeable surface embedded in a porous medium saturated by a nanofluid is performed in this study. Numerical solutions of the similarity equations are obtained using the shooting method. Three types of metallic or nonmetallic nanoparticles, namely Copper (Cu), Alumina (Al2O3...

The present study deals with the flow and heat transfer analysis of two immiscible fluids in an inclined channel embedded in a porous medium. The channel is divided in two phases such that a third grade fluid occupies the phase I and a viscous fluid occupies the phase II. Both viscous and third grade fluids are electrically conducting. A constant magnetic field is imposed perpendicular to the c...

Hot luminous stars show a variety of phenomena in their photospheres and in their winds which still lack clear physical explanations at this time. Among these phenomena are non-thermal line broadening, line profile variability (LPVs), discrete absorption components (DACs), wind clumping and stochastically excited pulsations. Cantiello et al. (2009) argued that a convection zone close to the sur...