Exhaust Jet Noise Reduction for Tactical Aircraft

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0229
Agency Tracking Number: N073-173-0351
Amount: $745,945.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solicitation Year: 2007
Solicitation Topic Code: N07-173
Solicitation Number: 2007.3
Small Business Information
5100 Springfield Street, Suite 301, Dayton, OH, -
DUNS: 782766831
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Sivaram Gogineni
 (937) 266-9570
Business Contact
 Sivaram Gogineni
Title: President
Phone: (937) 266-9570
Email: sgogineni@spectralenergies.com
Research Institution
A class of high amplitude and high bandwidth actuators called localized arc filament plasma actuators (LAFPAs) have been developed at OSU and used for control of high-speed and high Reynolds number jets. The control included successful noise mitigation in a Mach 0.9 jet and mixing enhancement in a Mach 1.3 ideally expanded jet. The control relies on high bandwidth of the actuators and excites various instabilities in the jet to achieve the goal of mixing enhancement or noise mitigation. The proposed Phase II work will explore the effectiveness of this technology in more practical supersonic exhaust jets operating with various flow regimes (i.e. ideally-, over-, and under-expanded) and high temperature. Technology demonstration (effect on plume and acoustics) on a 1/4th scaled nozzle will be made. Detailed system integration issues including design of a multi-channel, light weight, energy efficient plasma generator, and risk analyses will be performed.

* Information listed above is at the time of submission. *

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