Development of Phenomenological Liquid Spray Design Tool for Augmentor Operability and Performance

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-04-M-2442
Agency Tracking Number: F041-181-2600
Amount: $99,995.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solitcitation Year: 2004
Solitcitation Topic Code: AF04-181
Solitcitation Number: 2004.1
Small Business Information
2766 Indian Ripple Rd, Dayton, OH, 45440
Duns: 884812025
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Terrence Meyer
 Research Engineer
 (937) 904-4007
Business Contact
 Larry Goss
Title: President
Phone: (937) 429-4980
Research Institution
The combination of empirical spray modeling, dense- and dilute-spray diagnostics, and CFD simulation will be used to provide a more accurate spray-design tool for gas-turbine augmentors. A global model of liquid breakup and droplet dispersion will be assembled based on existing correlations for liquid-jet trajectory, surface breakup, column breakup, secondary breakup of droplets, and evaporation. The model will be validated for liquid-jet injection into a gaseous crossflow under augmentor conditions, including the effects of high inlet temperature and flame-holder geometry. A newly demonstrated diagnostic technique called ballistic imaging shadowgraphy, made possible by the availability of ultrafast lasers, will be used to capture high-resolution images through the dense-spray region. This will provide critical new data on ligamentation, jet-core instabilities, jet-core breakup, and dense-spray effects. A one-way-coupled Lagrangian numerical simulation will be used as the test-bed for parametric studies. Finally, a fully-coupled large-scale CFD simulation will be performed by our partners in the gas-turbine industry to test the performance of the global model.

* information listed above is at the time of submission.

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