ABSTRACT
National Aeronautics and Space Administration (NASA) has had a long and successful history of contributions toward the nation’s goal of improved aircraft fuel efficiency. Specifically, the NASA Glenn Research Center (GRC) has played a direct role in commercial aircraft propulsion system improvements through concept development, component testing, analysis, and model development for aircraft engine inlets, fans, compressors, turbines, and nozzles. This chapter will focus primarily on aerothermodynamic improvements to aircraft engine systems that were enabled through NASA research efforts.
