ACTIVE CONTROL OF JET NOISE VIA BI-MODAL EXCITATION
Abstract
High-fidelity Large-Eddy Simulation (LES) will be used to study the effect of bi-model excitation on rectangular supersonic-jet noise. This will be guided by an integral approach that estimates the required excitation signal. The objective here is to reduce the peak noise occurring at a given frequency, generally labeled as the fundamental frequency. Guided by previous experimental and theoretical studies, it is believed that exciting the jet at a harmonic of the fundamental frequency can lead to nonlinear interactions resulting in the reduction of the farfield sound. Once the effectiveness of the approach is demonstrated, the results of the analysis and the ROM can be subsequently used in the development of an active jet noise control technology for reduction of aircraft noise aboard the Navy fleet.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 02, 2021
- Source ID
- N000142112102
Entities
People
- Reda R. Mankbadi
Organizations
- Embry–Riddle Aeronautical University
- Office of Naval Research
- United States Navy