G070054 Study on Hydrogen-Jet Developments in the Argon Atmosphere

Abstract

This research aims to study the characteristics of hydrogen jets in argon atmosphere, which provides the fundamental condition of hydrogen jet in the argon circulated hydrogen engine. The experiments were carried out using a constant-volume vessel under various conditions of ambient gas and hydrogen injection. The results show that the development of the hydrogen jet in argon is slower than that in nitrogen due to its high density and faster at a higher injection pressure, at a lower ambient pressure and with a larger nozzle-orifice diameter.