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۱Radiation and Mass Transfer Effects on MHD Oscillatory Flow in a Channel Filled with Porous Medium in the Presence of Chemical Reaction
اطلاعات انتشار: Journal Of Applied Fluid Mechanics، هشتم،شماره۳، ۲۰۱۵، سال
تعداد صفحات: ۹
The interaction of radiation and mass transfer in an electrically conducting fluid through a channel filled with porous medium has received little attention. Hence, an attempt is made to investigate the combined effects of a transverse magnetic field and radiation on an unsteady mass transfer flow with chemical reaction through a channel filled with saturated porous medium and non–uniform wall temperature. The equations of continuity, linear momentum, energy and diffusion, which govern the flow field, are solved by using an analytical method. The behaviour of the velocity, temperature, concentration, skin–friction, Nusselt number and Sherwood number has been discussed for variations in the governing parameters.

۲Radiation, Heat Generation and Viscous Dissipation Effects on MHD Boundary Layer Flow for the Blasius and Sakiadis Flows with a Convective Surface Boundary Condition
نویسنده(ها): ، ،
اطلاعات انتشار: Journal Of Applied Fluid Mechanics، هشتم،شماره۳، ۲۰۱۵، سال
تعداد صفحات: ۱۲
This study is devoted to investigate the radiation, heat generation viscous dissipation and magnetohydrodynamic effects on the laminar boundary layer about a flat–plate in a uniform stream of fluid (Blasius flow), and about a moving plate in a quiescent ambient fluid (Sakiadis flow) both under a convective surface boundary condition. Using a similarity variable, the governing nonlinear partial differential equations have been transformed into a set of coupled nonlinear ordinary differential equations, which are solved numerically by using shooting technique alongside with the forth order of Runge–Kutta method and the variations of dimensionless surface temperature and fluid–solid interface characteristics for different values of Magnetic field parameter M, Grashof number Gr, Prandtl number Pr, radiation parameter NR, Heat generation parameter Q, Convective parameter  and the Eckert number Ec, which characterizes our convection processes are graphed and tabulated. Quite different and interesting behaviors were encountered for Blasius flow compared with a Sakiadis flow. A comparison with previously published results on special cases of the problem shows excellent agreement.

۳Non–Similar Computational Solution for Boundary Layer Flows of Non–Newtonian Fluid from an Inclined Plate with Thermal Slip
اطلاعات انتشار: Journal Of Applied Fluid Mechanics، نهم،شماره۲، ۲۰۱۶، سال
تعداد صفحات: ۱۳
The laminar boundary layer flow and heat transfer of Casson non–Newtonian fluid from an inclined (solar collector) plate in the presence of thermal and hydrodynamic slip conditions is analysed. The inclined plate surface is maintained at a constant temperature. The boundary layer conservation equations, which are parabolic in nature, are normalized into non–similar form and then solved numerically with the well–tested, efficient, implicit, stable Keller–box finite–difference scheme. Increasing velocity slip induces acceleration in the flow near the inclined plate surface. Increasing velocity slip consistently enhances temperatures throughout the boundary layer regime. An increase in thermal slip parameter strongly decelerates the flow and also reduces temperatures in the boundary layer regime. An increase in Casson rheological parameter acts to elevate considerably the velocity and this effect is pronounced at higher values of tangential coordinate. Temperatures are however very slightly decreased with increasing values of Casson rheological parameter.
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