Supersonic Combustion. Theresita Buhler Sara Esparza Cesar Olmedo. Purpose & Goals Introduction to combustion Engine parameters Jet Engine Ramjet Scramjet Jet Engine vs. Scramjet Model Reference stations Analytical approach Compressible flow Shockwaves Inlet: Diffuser design
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Purpose & Goals
Introduction to combustion
Jet Engine vs. Scramjet
Inlet: Diffuser design
Engine: Cowl design
Combustion schemes & fuels
Installation in the wind tunnel
Fuel lines and ignition wires
Fuel- Air Mixing at mach speeds
Gas phase chemical reaction occurs by the exchange of atoms between molecules as a results of molecular collisions.
The fuel and air must be mixed at near-stoichiometric proportions before combustion can occur
Parallel Mixing of Fuel- Air
X=0Combustion Parallel Mixing
μ: dynamic viscosity
ν: kinematic viscosity
Sustaining supersonic combustion is “like trying to light a match in a hurricane”
“There is currently no conclusive evidence that these requirements can be met: nevertheless, the present study starts with the basic assumption that stable supersonic combustion in an engine is possible” -Richard J. Weber
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