Noise Reduction through Circulation Control

One of the major environmental dilemmas facing today's, aircraft industry is noise pollution from aircraft, especially around the airport. There is a large emphasis on minimizing community noise due to operation of aircraft at and around airports. Thus, airlines, aircraft manufacturers, The National Aeronautics and Space Administration (NASA), and the Federal Aviation Administration (FAA) have made reducing aircraft noise a priority. NASA has proposed a goal of lowering total aircraft noise emissions by 20 (effective pressure noise level) EPNdB by 2020.