Transient Jet-Interaction Combustion Modeling

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$729,965.00
Award Year:
2002
Program:
SBIR
Phase:
Phase II
Contract:
DAAH01-02-C-R001
Award Id:
52779
Agency Tracking Number:
A002-0572
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
174 North Main Street, P.O. Box 1150, Dublin, PA, 18917
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
Sanford Dash
Presient & Chief Scientis
(215) 249-9780
dash@craft-tech.com
Business Contact:
Sanford Dash
President & Chief Scienti
(215) 249-9780
dash@craft-tech.com
Research Institution:
n/a
Abstract
"Interceptor missiles achieve high maneuverability in final phases of their mission via the use of divert/attitude control jets. Jet firings are of short duration (10-40ms) and the entire process from firing to shut-off is of concern and requires veryaccurate modeling. Aerodynamic interactions are characterized by large regions of jet-induced separation. Afterburning and particulate interactions play a significant role with concerns of combustion products reaching seeker windows and related particleobscuration/radiative heating issues. Transitional turbulence plays a major role at altitudes between 30-50km. Present high-fidelity simulation (5M grid points, 64 processors) abilities are lengthy and limited by computer resources. This proposaladdresses present limitations by advances in numerics and parallel code architecture, as well as in inclusion of pertinent physics and thermochemistry. "Smart" massively parallel adaptive domain decomposition for structured and unstructured grids andrelated numerical advances proposed will reduce run time by an order of magnitude. Advances in hypersonic pde-based turbulent transitional and pdf turbulent combustion modeling are proposed, which address major concerns in making accurate predictions.Particulate modeling entails extension of accurate Lagrangian methodology to massively parallel platforms and experiments to calibrate particle dispersion. Comparisons with LENS and other data sets

* information listed above is at the time of submission.

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