EFFECT OF WALL COOLING ON INLET PARAMETERS OF A SCOOP OPERATING IN A TURBULENT BOUNDARY LAYER ON A FLAT OR CONICAL SURFACE FOR MACH NUMBERS 2 TO 10

摘要

Analytical results were obtained for boundary-layer mass flow, momentum, total-temperature, and total-pressure recovery ratios of a scoop inlet with a height equal to the boundary-layer thickness and oper-ating in a turbulent boundary layer, for flat and conical surfaces with wall cooling. When the wall temperature is reduced from the adiabatic temperature to that of the free-stream static temperature, mass-flow and momentum ratios increase up to 50 percent, while the total-temperature ratio of this airflow is reduced by about 6 percent, and the total-pressure recovery increases slightly.