MIXED CONVECTION HEAT TRANSFER FOR BINGHAM FLUID IN SQUARE CAVITY WITH PARTITIONS

Two-dimensional steady mixed convection flow in an enclosure with partitions filled with a Bingham fluid is considered. The vertical walls are maintained at different constant temperatures and they are moving in opposite direction. The upper and the bottom walls are fixed and thermally insulated. The governing equations are normalized and solved numerically by the finite volume control. A parametric investigation is performed and a set of isotherms and streamlines are presented. The results shown that the decrease of Richardson number increase the fluid flow and enhanced the heat transfer. The effect of the yield-stress in the presence of the partition is to drop the fluid motion and to augment heat transfer where the conduction mode is dominant.