Hot-wire measurement setup for a BLI configuration, featuring a ducted fan installed adjacent to a curved airframe surface. The setup enables high-resolution velocity field analysis to uncover the ...

NASA's Glenn Research Center has been an integral part of the nation's mission to reduce aircraft engine noise for over 70 years. The center's journey in quieting jet engines has evolved into a ...

Boeing's 777X, with its GE9X engines, bucks the trend of incorporating engine chevrons for noise reduction. But is there a hidden cost to this choice?

Commercial aviation has changed significantly over the years. If we look back at the first generation of jets, their design and propulsion systems were very different from what we see today. They did ...