Statement of Need: Modern rockets operate at supercritical pressures with respect to the propellants. Need to understand mixing and combustion beyond liquid, gas states. Shear coaxial injectors are a common choice for cryogenic liquid rocket engines. Interactions of transverse acoustics with injector s own modes and mixing needs to be understood for combustion instability. Need to understand differences in response to pressure and velocity nodes. Understand what non-dimensional numbers capture the mixing of typical injectors. Characterize how geometry affects mixing.
Mixing in Shear Coaxial Jets with and without Acoustics (Briefing Charts)
2012
88 pages
Report
No indication
English
Jet & Gas Turbine Engines , Acoustics , Coaxial configurations , Injectors , Rocket engines , Combustion , Combustion stability , Gases , Geometry , Heat transfer , Instability , Interactions , Mixing , Motivation , Nodes , Pressure , Propellants , Response , Rockets , Shear properties , Supercritical flow , Variations , Velocity , Briefing charts , Q0ay
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