Flame Ignition/Extinction Model for Static Stability Prediction

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-08-C-2847
Agency Tracking Number: F071-175-2387
Amount: $741,477.00
Phase: Phase II
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: AF071-175
Solicitation Number: 2007.1
Small Business Information
8940 Old Annapolis Road Suite L, Columbia, MD, 21045
DUNS: 018413208
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Michael Klassen
 Principal Research Engine
 (410) 884-3266
 mklassen@csefire.com
Business Contact
 Richard Roby
Title: President / Technical Dir
Phone: (410) 884-3266
Email: rroby@csefire.com
Research Institution
N/A
Abstract
Maintaining stable combustion is a major challenge associated with augmentor design and operation. Numerical simulations of this process are necessary to understand the combustion process and develop control strategies. Thus, it is essential to have reliable reduced kinetic models that are capable of predicting transient combustion phenomena such as ignition and extinction under augmentor operating conditions. Combustion Science & Engineering, Inc. proposes to develop a robust reduced kinetic modeling strategy for aviation fuels that can be coupled with unsteady flow models such as LES to simulate static stability limits in augmentors. In this approach, the fuel molecule will be represented by a global reactions step, while a detailed reaction sub-set will be used for CH2O/H2/O2 scheme for accurate predictions of non-equilibrium phenomena such as ignition and extinction. Various turbulence/mixing models will be evaluated and optimum set of models will be chosen to couple with reduced kinetic model for CFDC simulation to predict flame propagation and static stability limits (i.e., ignition and extinction) under augmentor operating conditions. Measurements of important fundamental kinetic parameters in vitiated conditions will be made to validate the reaction schemes.

* Information listed above is at the time of submission. *

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