03.2 - Experimental Aerodynamics
INFLUENCE OF VARIABLE WALL PERFORATION RATIO ON BOUNDARY LAYER PARAMETERS AT TRANSONIC SPEEDS
S.L. Osipova, Russia
The results of measuring boundary layer longitudinal velocity profiles on the nozzle and interchangeable test sections walls of T-128 transonic WT presented. 2-dimensional boundary layer velocity profiles both on smooth and perforated and slotted walls and friction coefficient at very high Reynolds numbers (Re?** ? (0.5÷2.2)?10^5) measured and compared with the available experimental results.