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High-Speed Measurements of Dynamic Flame Stabilization Processes in High-Pressure Combustion Systems

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-17-C-2035
Agency Tracking Number: F16A-T13-0181
Amount: $749,946.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: AF16-AT13
Solicitation Number: 2016.0
Solicitation Year: 2016
Award Year: 2017
Award Start Date (Proposal Award Date): 2017-09-12
Award End Date (Contract End Date): 2019-12-20
Small Business Information
5100 Springfield Street
Dayton, OH 45431
United States
DUNS: 782766831
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: Yes
Principal Investigator
 Dr. Sukesh Roy
 (937) 902-6546
Business Contact
 Dr. Sivaram Gogineni
Phone: (937) 266-9570
Research Institution
 Georgia Institute of Technology
 Prof. Timothy Lieuwen
505 10th Street, NW
Atlanta, GA 30332
United States

 (404) 385-3014
 Nonprofit College or University

The Phase-II research is a natural extension and a significant advancement over the Phase-I research, which has successfully demonstrated high-speed, burst-mode, polarization-based, dual-plane, stereoscopic PIV measurements synchronized with OH-PLIF imaging of turbulent swirling combustion in a generic gas-turbine combustor with and without acoustic forcing. We propose to conduct high-speed, burst-mode, two-color, dual-plane stereo-PIV (DP-stereo-PIV) measurements synchronized with dual-plane OH-PLIF imaging, two-color OH-PLIF thermometry and CH2O/OH-PLIF imaging of natural-gas-fueled turbulent swirling combustion to completely and unambiguously determine the nine-component strain-rate tensor, the flame stretch rate, the flame curvature and the flame orientation and generate unprecedented benchmark databases on turbulent swirling combustion with and without combustion instabilities at elevated pressure. Then, we propose to perform a systematic and indepth investigation of turbulent, swirling spray combustion by conducting high-speed, burst-mode DP-stereo-PIV measurements, OH/fuel-PLIF imaging, tomographic imaging of droplets and OH* chemiluminescence and two-color OH-PLIF imaging synchronized with fuel-PLIF imaging. The proposed research aims to substantially advance state-of-the-art understanding of turbulent spray combustion in aircraft engines, including combustion instabilities, flame stabilization and blowoff, and guide design and operation of high-performance combustion/propulsion systems with improved operability, reliability and sustainability.

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

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