Light Field Imaging for Dense Sprays

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,982.00
Award Year:
2010
Program:
STTR
Phase:
Phase I
Contract:
N00014-10-M-0248
Award Id:
95134
Agency Tracking Number:
N10A-027-0410
Solicitation Year:
n/a
Solicitation Topic Code:
NAVY 10T027
Solicitation Number:
n/a
Small Business Information
P.O. Box 71, Hanover, NH, 03755
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
072021041
Principal Investigator:
DarinKnaus
Principal Investigator
(603) 643-3800
dak@creare.com
Business Contact:
JamesBarry
President
(603) 643-3800
contractsmgr@creare.com
Research Institute:
Mass Institute of Technology
Michael P Corcoran
77 Massachusetts Avenue
Bldg. E19-750
Cambridge, MA, 2139
(617) 253-3906

Abstract
The performance of modern combustion systems used in propulsion devices (e.g., gas turbine main combustors, augmentors, rockets, etc.) is largely dependent on the mixing of fuel and oxidizer (e.g., compressor air, vitiated air, and oxygen). This mixing process, usually involving a liquid jet emanating into a gaseous flow followed by subsequent breakup and atomization, is critically important to many performance metrics including thrust, efficiency, static stability, dynamic stability, observability, and emissions. Despite the importance of jet breakup and atomization, the process is poorly understood and design approaches are largely based on correlations, yielding mixed results. Our poor understanding of liquid jet dynamics is partly due to the fact that the diagnostic tools currently available to study liquid jet behavior have a limited ability to visualize the dense core region of the jet. In the proposed effort, Creare and Massachusetts Institute of Technology (MIT) will investigate applying a new flow visualization technique to this problem called Light Field Imaging (LFI). In Phase I, we will conduct a proof-of-concept experiment where we will apply LFI to a representative liquid jet-in-cross-flow. We will compare LFI with other techniques. In Phase II, we will optimize the LFI setup and conduct tests at representative flow conditions.

* information listed above is at the time of submission.

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