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

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,995.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
FA8650-04-M-2442
Award Id:
67678
Agency Tracking Number:
F041-181-2600
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2766 Indian Ripple Rd, Dayton, OH, 45440
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
884812025
Principal Investigator:
Terrence Meyer
Research Engineer
(937) 904-4007
trmeyer @innssi.com
Business Contact:
Larry Goss
President
(937) 429-4980
gosslp@innssi.com
Research Institution:
n/a
Abstract
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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