Control of Thermo Magnetic Heat Transfer in Porous Cavity With Baffle(s)
Steady, laminar, natural-convection flow in the presence of a magnetic field in a porous cavity heated from left wall sinusoidally and cooled from right wall is considered. It is well known that unavoidable hydrodynamic movements can be damped with the help of a magnetic field. The Finite Volume method and SIMPLE algorithm for discretizing is used to solve the non-dimensional governing equations. The Convection and Diffusion term of the equations are discretized by Central Difference Scheme (CDS). The numerical procedure has been done over a range of Rayleigh number, Ra, and value of Hartmann number (Ha), 0 ≤ Ha ≤ 150 and effect of them is investigated on average and local Nusselt number. Effect of position and length of baffle in cavity in different models is studied in this paper. It is shown that as the value of Hartmann number (Ha) increases and with growth of baffle length, the convection heat transfer reduces. Also position and numbers of baffle play an important role in control of heat transfer.