Light Field Imaging for Dense Sprays

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-10-M-0248
Agency Tracking Number: N10A-027-0410
Amount: $99,982.00
Phase: Phase I
Program: STTR
Awards Year: 2010
Solitcitation Year: 2010
Solitcitation Topic Code: N10A-T027
Solitcitation Number: 2010.A
Small Business Information
Creare Inc.
P.O. Box 71, Hanover, NH, 03755
Duns: 072021041
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Darin Knaus
 Principal Investigator
 (603) 643-3800
 dak@creare.com
Business Contact
 James Barry
Title: President
Phone: (603) 643-3800
Email: contractsmgr@creare.com
Research Institution
 Mass Institute of Technology
 Michael P Corcoran
 77 Massachusetts Avenue
Bldg. E19-750
Cambridge, MA, 2139
 (617) 253-3906
 Nonprofit college or university
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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