Recent Advances in H2/O2 High Pressure Coaxial Injector Performance Analysis.

Abstract

Theoretical and experimental studies have been performed on propellant injection problems in high pressure H2/O2 combustors using coaxial injector configurations with liquid (LOX) core and surrounding parallel (GH2) gas stream. The aim based on previous experiences in the field of atomization has been to identify some of the fundamental processes in liquid jet break-up, droplet generation, evaporation, mixing and/or transport under supercritical pressure conditions, in order to be able to define, beyond empirical knowledge, the physical boundary conditions for subsequent combustion and expansion regimes and to establish and verify corresponding mathematical laws for integration into global combustor models.