NRL researchers study ways to reduce jet aircraft noise
Tuesday, February 15, 2011 - 15:00
in Physics & Chemistry
Advanced military jet aircraft have engines that provide the needed speed and maneuverability. However, with this greater power there is significant noise during takeoff and landing. The noise can impact the public and affect the health and safety of flight line workers. To confront the challenges of the noise problem, the Naval Research Laboratory (NRL) collaborated with the University of Cincinnati (UC) and GE Aircraft Engines to investigate the use of mechanical chevrons (serrations at the rim of the exhaust nozzle) and fluidics to successfully reduce the noise from supersonic military jet aircraft.