Hydrogen-fueled scramjet investigation. Final report, Feb 87-Apr 90
This report documents an experimental and analytical study of the supersonic mixing and combustion processes associated with a free-shear layer. A specific objective comprised quantifying the effects on the mixing and combustion processes of pressure gradients associated with the production of shock waves in the flowfield. An experiment was conducted in a generic supersonic combustion configuration that incorporated the essential characteristics of scramjet combustors currently being considered for flight application. The objective of the analytical effort was to evaluate mixing and combustion models in state-of-the-art computational fluid dynamics (CFD) codes. The experiments provided accurate data used to formulate code input conditions and to evaluate codes that were formulated for application in current high-speed propulsion design activities. Species concentration, total and static temperature, and pitot pressure profiles were measured in a shear layer experiment in which gaseous hydrogen was injected tangentially into a Mach 3 (nominal) vitiated air stream. In this experiment, hydrogen was injected adjacent to the upperwall of the test section. A nonintrusive optical diagnostic technique was used in conjunction with intrusive probing to define the flowfield initial conditions and to characterize the detailed features of the flowfield subsequent to hydrogen injection and combustion.
- Research Organization:
- United Technologies Research Center, East Hartford, CT (United States)
- OSTI ID:
- 5362622
- Report Number(s):
- AD-A-237569/9/XAB; UTRC/R-90-957663-1; CNN: F33615-86-C-2695
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HYDROGEN FUELS
COMBUSTION KINETICS
SUPERSONIC FLOW
ACCURACY
COMBUSTORS
DESIGN
EXPERIMENTAL DATA
FLUID MECHANICS
FUEL INJECTION SYSTEMS
LAYERS
NAVIER-STOKES EQUATIONS
OPTICS
PITOT TUBES
PRESSURE GRADIENTS
PRODUCTION
PROPULSION SYSTEMS
RAMAN SPECTROSCOPY
RAMJET ENGINES
SHEAR PROPERTIES
SHOCK WAVES
CHEMICAL REACTION KINETICS
DATA
DIFFERENTIAL EQUATIONS
ENGINES
EQUATIONS
FLUID FLOW
FUEL SYSTEMS
FUELS
HEAT ENGINES
INFORMATION
INTERNAL COMBUSTION ENGINES
KINETICS
LASER SPECTROSCOPY
MECHANICAL PROPERTIES
MECHANICS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
REACTION KINETICS
SPECTROSCOPY
SYNTHETIC FUELS
083000* - Hydrogen- Combustion- (1990-)