Effect of moving lids on the air flow confined in porous 2D cavity

The convective regime in a porous process confined inside a closed enclosure heated from bellow is modeled in the present paper using the Navier-Stockes equations. These are discretized by the finite difference method. All numerical tests are performed for Prandtl and Reynolds values respectively to Pr=0.71 and Re=100. The influence of some parameters such as the Darcy and Richardson numbers on the structures of the flow has been analyzed. The obtained results have detected a significant change in fluid circulation patterns within the studied configuration.