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

Andrew Beke
naca-tn-4153
Mar 1958


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 operating 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.

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