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Investigation of Combustion Instability in Augmentors Using High-Speed PIV and…

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Spectral Energies, LLC
5100 Springfield Street Suite 301 Dayton, OH 45431-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2008
Title: Investigation of Combustion Instability in Augmentors Using High-Speed PIV and PLIF
Agency / Branch: DOD / USAF
Contract: FA8650-08-C-2849
Award Amount: $749,425.00


The objective of this Phase-II effort is to build and deliver a high-speed laser system for performing particle-image velocimetry (PIV) and planar laser-induced fluorescence (PLIF) of OH at rates of 5 to 10 kHz in augmentor test facilities. This state-of-the-art laser system will allow velocity and 2-D flame radical measurements for understanding the complex spatio-temporal development of instability modes leading to local and global flame extinction. Acquisition of PIV and PLIF images at 5 to 10 kHz will be sufficient to capture the interaction of small- and large-scale structures responsible for initiating or sustaining most of the phenomena that affects augmentor stability. Initial demonstration measurements will be performed in a laboratory turbulent flame where the interaction of vortices (i.e., the instabilities) can be controlled in systematic way for optimizing system performance. Data from these measurements will be used to demonstrate the ability to track instability modes and their spatio-temporal interaction. These laboratory experiments will be followed by the installation of the system at WPAFB for performing measurements under various augmentor conditions dictated by AFRL scientists. Successful implementation of this effort will pave the way for AFRL scientists to address instabilities in other combustors with the state-of-the-art laser diagnostic system.

Principal Investigator:

Sivaram Gogineni
Senior Research Scientist

Business Contact:

Terrence R. Meyer
Technical Director
Small Business Information at Submission:

2513 Pierce Ave. Ames, IA 50010

EIN/Tax ID: 020780873
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No