TY - JOUR
TI - Unsteady mixed convection in a porous media filled lid-driven cavity heated by a semi-circular heaters
AU - Rahman M M
AU - Öztop Hakan F
AU - Saidur Rahman
AU - Mekhilef S
AU - Al-Salem Khaled
JN - Thermal Science
PY - 2015
VL - 19
IS - 5
SP - 1761
EP - 1768
PT - Article
AB - A computational study has been performed on natural convection heat transfer  and fluid flow in a porous media filled enclosure with semi-circular heaters  by using finite element method. The ceiling of the cavity moves with a  constant velocity and it is insulated. Temperature of vertical walls is lower  than that of heaters. Results are presented via streamlines, isotherms,  average Nusselt numbers and cross sectional velocity for different governing  parameters such as Richardson number, Darcy number and dimensionless time. It  is observed that both circulation of the flow and heat transfer is strongly  affected with time increment and Darcy number inside the cavity.