Advanced Particle Treatment in Modeling Rocket Exhaust Plumes

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0147-12-C-7915
Agency Tracking Number: B112-029-0063
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2012
Solicitation Year: 2011
Solicitation Topic Code: MDA11-029
Solicitation Number: 2011.2
Small Business Information
Combustion Research and Flow Technology, Inc.
6210 Kellers Church Road, Pipersville, PA, -
DUNS: 929950012
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Brian York
 Principal Scientist and Treasurer
 (215) 766-1520
 york@craft-tech.com
Business Contact
 Neeraj Sinha
Title: Vice-President&Technical Director
Phone: (215) 766-1520
Email: 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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