Advanced Particle Treatment in Modeling Rocket Exhaust Plumes

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$100,000.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
HQ0147-12-C-7915
Award Id:
n/a
Agency Tracking Number:
B112-029-0063
Solicitation Year:
2011
Solicitation Topic Code:
MDA11-029
Solicitation Number:
2011.2
Small Business Information
6210 Kellers Church Road, Pipersville, PA, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
Brian York
Principal Scientist and Treasurer
(215) 766-1520
york@craft-tech.com
Business Contact:
Neeraj Sinha
Vice-President&Technical Director
(215) 766-1520
sinha@craft-tech.com
Research Institution:
Stub




Abstract
The proposed Phase I effort involves the formulation of improved models to accurately simulate the particles that are present in rocket exhaust plume flowfields with the goal of obtaining improved plume signature predictions. While the modeling of the exhaust plume flowfield is a relatively mature technology, the sub models that are utilized to describe the behavior of the particle phase are in need of improvement. In Phase I, methods will be investigated to replace the current"binning"approach that is utilized to approximate the particle size distribution and the practicality of employing a probability density function (PDF) method will be assessed. Another area where improvement is needed is in the modeling of soot produced in hydrocarbon based liquid propellant systems. The current modeling of the combustion of soot as a"pseudo gas"has been shown to be inadequate and models that treat the combustion in the solid phase will be investigated. The resulting product will be a first principles based CFD model that can capture these complex processes. This is a critical requirement for the accurate generation of active and passive signatures.

* information listed above is at the time of submission.

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