%0 Journal Article
%A Beg, Osman Anwar
%A Khan, Waqar
%A Uddin, Mohammed Jashim
%D 2015
%I Begell House
%K unsteady flow, magnetic nanofluid, mixed convection, heat source/sink, porous medium;
slip flow, magnetohydrodynamic energy systems
%N 9
%P 907-922
%R 10.1615/JPorMedia.v18.i9.70
%T MULTIPLE SLIP EFFECTS ON UNSTEADY MAGNETOHYDRODYNAMIC NANOFLUID TRANSPORT WITH HEAT GENERATION/ABSORPTION EFFECTS IN TEMPERATURE DEPENDENT POROUS MEDIA
%U http://dl.begellhouse.com/journals/49dcde6d4c0809db,78f2ac65337df33d,4c7b5bcd0cc1d174.html
%V 18
%X Transient hydromagnetic flow, heat, and mass transfer of a conducting nanofluid in a Darcian porous medium is
studied. The heat generation/absorption effect is incorporated based on the dual formulation of Tsai et al. (Tsai, R.,
Huang, K. H., and Huang, J. S., Flow and Heat Transfer over an Unsteady Stretching Surface with Non-Uniform
Heat Source, Int. Commun. Heat Mass Transfer, vol. 35, pp. 1340-1343, 2008), for space and temperature dependence.
Multiple slip phenomena are also featured in the model to simulate certain industrial polymer flows where the no-slip
wall boundary condition is violated. A 2D unsteady incompressible boundary layer model is developed for water based
nanofluid containing two different types of nanoparticles, namely alumina and copper nanoparticles. The resulting
partial differential equations with corresponding boundary conditions are rendered into a system of coupled ordinary
differential equations via suitable similarity transformations. The nonlinear boundary value problem is then solved with
Maple quadrature. Validation of solutions is achieved with previous studies for selected values of Prandtl number and
temperature-dependent heat generation/absorption parameter, demonstrating very good correlation. The influence of
Richardson number, buoyancy ratio parameter, nanoparticle solid volume fraction, magneto-hydrodynamic body force
parameter, Darcy number, unsteadiness parameter, wall transpiration (suction/injection parameter), velocity slip parameter,
thermal slip parameter, mass slip parameter, space- and temperature-dependent heat source/sink parameter on
velocity, temperature, and concentration distributions are examined. Furthermore the effects of these parameters on skin
friction, Nusselt number, and Sherwood number are also analyzed. The present simulations are relevant to magnetohydrodynamic
energy devices exploiting nanofluids.
%8 2015-08-31