Simulated Transient Evolutionary Plume Signature (STEPS)

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$1,250,000.00
Award Year:
2007
Program:
SBIR
Phase:
Phase II
Contract:
W9113M-07-C-0158
Agency Tracking Number:
053-0726
Solicitation Year:
2005
Solicitation Topic Code:
MDA05-046
Solicitation Number:
2005.3
Small Business Information
AERO OPTICS, INC.
655 Deep Valley Drive, Suite 335, Rolling Hills Estate, CA, 90274
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
625432679
Principal Investigator:
G. Newton Freeman
Principal Scientist
(310) 541-1933
gnf@aero-optics.com
Business Contact:
G. Newton Freeman
President
(310) 541-1933
gnf@aero-optics.com
Research Institution:
n/a
Abstract
Nonsteady plume signatures can result from transient engine operating conditions (e.g., start-up, shut-down) or evolutionary vehicle flight conditions (acceleration, ascent). Current standard plume signature codes assume constant engine/flight conditions as for a steady engine burn in a ground static test. An advanced simulation capability is proposed that enables time-continuous multi-scale nonsteady plume signatures for transient/evolutionary engine/flight conditions throughout and beyond the boost phase. The nonsteady simulation tool incorporates rigorous first-principles physical models and efficient stable numerical methods adopted from an existing steady-state simulation tool. The simulation uses a natural coordinate grid that is coupled to the flow and determined simultaneously; the flow and grid to evolve together in space and time from chamber-to-trail and ground-to-space. The extension to nonsteady flows enables enhanced physical realism in time-accurate computations to support improved fidelity and speed in real-time dynamic engagement simulations.

* information listed above is at the time of submission.

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