Website Search
Find information on spaces, staff, and services.
Find information on spaces, staff, and services.
An experimental evaluation of the aerodynamic drag of several jet noise suppressors was conducted. The one-fifth scale suppressors were tested over a Mach number range from 0.65 to 1.10 at several ...
An experimental evaluation of the aerodynamic drag of several jet noise suppressors was conducted. The one-fifth scale suppressors were tested over a Mach number range from 0.65 to 1.10 at several nozzle pressure ratios.
The least drag was caused by the lobe-type suppressors. The eight-lobe nozzle with ejector caused the greatest drag.
The cruise propulsive-thrust loss of the tube nozzle and the eight-lobe nozzle tith ejector should be about 6 1/2 percent of the net thrust for the standard nozzle. The lobe nozzles and the standard nozzle with ejector should cause losses equivalent to 3 or 4 percent of the standard-nozzle net thrust.