COMPARATIVE ANALYSIS OF THE VORTEX HEAT EXCHANGE IN TURBULENT FLOWS AROUND A SPHERICAL HOLE AND A TWO-DIMENSIONAL TRENCH ON A PLANE WALL
S. A. Isaev,a A. I. Leont'ev, b G. I. Kiknadze, c N. A. Kudryavtsev, a and I. A. Gachechiladzec UDC 532.517.4:621.1.016.4 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. a Academy of Civil Aviation, 38 Pilotov Str., St. Petersburg, 196620, Russia; email: isaev@SI3612.spb.edu; b N. E. Bauman Moscow State Technical University, Moscow, Russia; c BASERT Company, Moscow, Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 4, pp. 117-128, July-August, 2005. Original article submitted May 11, 2004.