Shock Tube Studies of Ram Accelerator Phenomena

摘要

The report describes research performed at Stanford University to investigate ram accelerator phenomena using expansion tube and shock tube facilities. The program included three coordinated elements: imaging and modeling of oblique detonations and shock-induced combustion in high-speed wedge and blunt body flows; experimental investigations of fuel jets in supersonic combustion; and measurements and modeling of ignition kinetics propulsion fuel mixtures. The objectives of this research were: to establish modern experimental capabilities for the study of high-pressure reactive gas dynamics; to measure critical chemical reaction rate parameters relevant to the modeling of ram accelerators; and to provide species flow field distribution information needed for the evaluation of CFD codes used in the study of ram accelerator phenomena and shock-induced combustion.