COMPARATIVE ANALYSIS OF THE VORTEX HEAT EXCHANGE IN TURBULENT FLOWS AROUND A SPHERICAL HOLE AND A TWO-DIMENSIONAL TRENCH ON A PLANE WALL

摘要

The vortex heat exchange in turbulent flows around a spherical hole and a transverse trench, identical in depth and in the shape of the middle cross section, on a plane wall has been numerically investigated using multiblock computational technologies. A factorized, implicit multiblock algorithm and a Menter's model of shear-stress transfer were tested in the process of comparative analysis of calculation and experimental data on flows around isolated holes.