Event Date
Eric Greenwood
Associate Professor, Pennsylvania State University
Abstract
There is a growing enthusiasm for operating aircraft in and around communities to serve the public, from the rapid delivery of small packages to intra-city transportation using flying “air taxis.” Noise is recognized as one of the major barriers to widespread adoption of these “advanced air mobility” rotorcraft, as they are expected to operate in large numbers and in close proximity to the people they serve. This talk will describe research efforts to overcome this barrier using theory and experiment. This will include an introduction to the physics of vertical lift aircraft noise generation, current research on the measurement and prediction of rotorcraft noise, and new concepts for the design and operation of advanced air mobility aircraft to dramatically reduce their acoustic impact.
Bio
Eric Greenwood is an Associate Professor of Aerospace Engineering at Penn State, where he leads a research program focused on enabling ultra-quiet aircraft operations in and around communities. Prior to joining Penn State in 2019, he was a researcher at the NASA Langley Research Center. He received his PhD and MS degrees in Aerospace Engineering from the University of Maryland, and a BS in Mechanical Engineering from the Rochester Institute of Technology. Dr. Greenwood’s research is focused on understanding the aerodynamics and acoustics of rotor and propeller driven aircraft using theoretical and experimental methods. He has received numerous awards for this work, including the NASA Early Career Achievement Medal and the Vertical Flight Society’s François-Xavier Bagnoud and Alfred Gessow awards.