In this paper, the effect of a magnetic field on natural convection in a half-annulus enclosure with one
wall under constant heat flux using control volume based finite element method. The fluid in the enclosure
is a water-based nanofluid containing Cu nanoparticles. The effective thermal conductivity and viscosity
of nanofluid are calculated using the Maxwell–Garnetts (MG) and Brinkman models, respectively.
Numerical simulations were performed for different governing parameters namely the Hartmann number,
Rayleigh number and inclination angle of enclosure. The results indicate that Hartmann number and
the inclination angle of the enclosure can be control parameters at different Rayleigh number. In presence
of magnetic field velocity field retarded and hence convection and Nusselt number decreases
کلید واژگان :
Magnetic field Nanofluid CVFEM Half-annulus enclosure Inclined enclosure
