Improved Kinetic Models for High Speed Combustion Simulation

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-05-M-2615
Agency Tracking Number: O054-002-1006
Amount: $100,000.00
Phase: Phase I
Program: STTR
Awards Year: 2005
Solitcitation Year: 2005
Solitcitation Topic Code: OSD05-T002
Solitcitation Number: N/A
Small Business Information
REACTION ENGINEERING INTERNATIONAL
77 West 200 South, Suite 210, Salt Lake City, UT, 84101
Duns: 612498220
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Christopher Montgomery
 Senior Engineer
 (801) 364-6925
 montgomery@reaction-eng.com
Business Contact
 Bradley Adams
Title: President
Phone: (801) 364-6925
Email: adams@reaction-eng.com
Research Institution
 NEW JERSEY INSTITUTE OF TECHNOLOGY
 Donald H Sebastian, Sr.
 University Heights
Newark, NJ, 07102
 (973) 596-5275
 Nonprofit college or university
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 the flight weight of the vehicle. 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 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. Automatically optimizing reduced mechanisms using a genetic algorithm, and 3. Implementing advanced chemical source term tabulation techniques (ISAT) that include branch trimming and multi-tree capabilities that give much better speed-up than earlier versions. In Phase II the kinetics will be further refined by comparison to experiments tailored to scramjet conditions and improvements for parallel ISAT will be implemented.

* information listed above is at the time of submission.

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