Project Title:

Gas Turbine Noise Reduction

02.11-8610
900358
Gas Turbine Noise Reduction

Abstract:

Reduction of gas turbine propulsion system noise, and associated vibrations, is an
important goal for future aircraft. The objective of this project is to use an innovative
methodology to identify and quantify the primary source of noise in gas turbine combustors
and use the results to identify a high-potential, noise avoidance concept. An innovative
unsteady flow model will be used to identify and quantify the fluid dynamic source
of noise, small-scale experiments will be run to confirm the model results, and noise
avoidance concepts will be identified and ranked. A best concept will then be selected
and recommended for further development under a Phase II effort.
The use of this concept in commercial and military aircraft will reduce noise and
vibration impacts on aircraft, improve their reliability and reduce maintenance costs.
noise, combustion, vortex, combustor