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Opportunity at Air Force Research Laboratory (AFRL)

Fundamental Combustion Kinetics Using Advanced Laser Diagnostics

Location

US Air Force Academy, Aeronautical Research Center

RO# Location
13.04.01.C0497 US Air Force Academy, CO 808406200

Advisers

name email phone
Mitchell D Hageman mitchell.hageman@afacademy.af.edu 515.451.7425

Description

Liquid fuel hydrocarbon combustion dominates the transportation space, particularly within the US Air Force and in many aerospace applications. There is considerable cost, regulatory, and environmental pressure toward reducing liquid fuel consumption and converting to sustainable and alternative fuels. Combustion in practical propulsion systems involves interactions between fluid dynamics, heat transfer, thermodynamics and chemical kinetics in heterogeneous fuel-oxidizer mixtures of multicomponent hydrocarbon fuels at short timescales. Experimental needs in combustion kinetics include quantifying fuel ignition properties, identifying rate-limiting intermediate reactions, and providing rate coefficients required for computational modelling. The US Air Force Academy has installed a 60 atm maximum test pressure shock tube for combustion kinetics. The shock tube will be a resource to the USAF and Department of Defense (DoD), as well as a center for collaborations in combustion research across the Colorado front range and nationwide. The newly installed tube is instrumented for fuel and intermediate hydrocarbon sensing, and ignition delay via chemiluminescence and pressure. Additional experimental facilities include two full-scale jet engines, a detonation combustor, a liquid fuel spray burner, a piston-engine based hybrid UAV power system, and a McKenna burner. The suite of laser-based chemistry diagnostics available in the laboratory also includes Laser-Induced Fluorescence and a fourier transform infrared spectrometer. We seek to develop and implement advanced laser diagnostics as required for novel shock-tube kinetics investigations.

Keywords:
Chemical kinetics; laser diagnostics; Air-breathing propulsion; Gas turbine; Internal combustion engine; detonation; hypersonics; combustion modelling

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral and Senior applicants

Stipend

Base Stipend Travel Allotment Supplementation
$76,542.00 $4,000.00

$3,000 Supplement for Doctorates in Engineering & Computer Science

Experience Supplement:
Postdoctoral and Senior Associates will receive an appropriately higher stipend based on the number of years of experience past their PhD.

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