Supersonic Exhaust Testing at Glenn
Supersonic Exhaust Testing at Glenn

New testing is underway in the Aero-Acoustic Propulsion Laboratory (AAPL) at NASA's Glenn Research Center. The research focuses on a model called the Highly Variable Cycle Exhaust System - a 0.17 scale model of an exhaust system that will operate at subsonic, transonic and supersonic exhaust speeds in a future supersonic business jet. The model features ejector doors used at different angles. Researchers are investigating the impact of these ejectors on the resulting acoustic radiation. Here, Steven Sedensky, a mechanical engineer with Jacobs Sverdrup, takes measurements of the ejector door positions.

Image Credit: NASA
Bridget R. Caswell, (Wyle Information Systems LLC)

Page Last Updated: July 28th, 2013
Page Editor: NASA Administrator