Fiscal Year:
2006
Title:
Improved Kinetic Models for High Speed Combustion Simulation
Agency / Branch:
DOD / OSD
Contract:
FA8650-06-C-2658
Award Amount:
$749,999.00
Abstract:
Scramjet propulsion has the potential to power high Mach number flight without the need to carry its own oxidizer like a rocket, thus significantly reducing vehicle flight weight. Numerical simulations will play an increasingly important role in the development of scramjet engines. Hydrocarbon fuels are advantageous for scramjet propulsion because of their higher energy density and ease of transport. CPU and memory limitations prohibit implementation of full detailed chemistry of hydrocarbon fuels into 3-D CFD simulations, even using the latest massively parallel computers. The proposed project will develop a hydrocarbon chemical kinetics modeling capability suitable for scramjet design applications by: (1) Improving existing chemical kinetic mechanisms for ethylene, JP-7 and JP-8 focusing on the low pressures and high temperatures found in a scramjet combustor using density functional and ab initio calculations of thermochemical properties and chemical kinetic rates; (2) Performing counterflow diffusion flames at subatmospheric pressures to fill gaps in existing data; (3) Automatically optimizing reduced mechanisms using a genetic algorithm; and (4) Implementing an advanced chemical source term tabulation technique (ISAT) that works efficiently in a parallel-processing environment. The parallel ISAT and reduced mechanisms based on improved kinetics will be implemented into the VULCAN and CFD++ CFD codes.
Small Business Information at Submission:
REACTION ENGINEERING INTERNATIONAL
77 West 200 South, Suite 210 Salt Lake City, UT 84101
EIN/Tax ID:
870474621
DUNS:
N/A
Number of Employees:
Woman-Owned:
No
Minority-Owned:
No
HUBZone-Owned:
No
Research Institution Information:
NEW JERSEY INSTITUTE OF TECHNOLOGY
University Heights
Newark, NJ 07102
Contact:
Joseph Bozzelli
Contact Phone:
(973) 596-5294
RI Type:
Nonprofit college or university