Multiple Reaction Control Jet Modeling

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$99,985.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
W31P4Q-11-C-0227
Agency Tracking Number:
A111-005-0314
Solicitation Year:
2011
Solicitation Topic Code:
A11-005
Solicitation Number:
2011.1
Small Business Information
Combustion Research and Flow Technology, Inc.
6210 Kellers Church Road, Pipersville, PA, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
Neeraj Sinha
Vice-President and Technical Direct
(215) 766-1520
sinha@craft-tech.com
Business Contact:
Brian York
Treasurer and Principal Scientist
(215) 766-1520
york@craft-tech.com
Research Institution:
Stub




Abstract
The program focuses on CFD modeling requirements for predicting Multiple Reaction Control Jet (MRCJ) plume flowfields for hypersonic interceptors. Unified k & #949; turbulence model, and varied extensions that provide for scalar fluctutation models (SFM), baroclinic torque effects, realizability constrainst, vorticity/strain non-equilibrium effects, etc. will be systematically evaluated. Complimentary Direct Numerical Simulations (DNS) will provide additional turbulence statistics that are not readily/reliably measured and provide insight into unsteady effects. The DNS data will support enhancements to the CRAFT Tech unified k- & #949; turbulence model. The impact of employing a variable turbulent Prandtl and Schmidt number methodology, based on a two-equation scalar variance framework, will be considered for reacting and non-reacting MRCJ. The effort will lead to extended validation of enhanced turbulence modeling tools, increased reliability of aerodynamic drag & heat flux predictions and fills a major gap at the US Army by improving upon jet interaction (JI) simulation capabilities required for design of hypersonic missiles with multiple surface-mounted, fast-reacting jet thrusters.

* information listed above is at the time of submission.

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