Primary Breakup of Liquid Jet in Supersonic Crossflow

Abstract

In a liquid hydrocarbon-fuelled supersonic combustion ramjet (scramjet) engine, the atomization and mixing of liquid fuel in the supersonic airflow determine the engine ignition reliability and combustion performance. Since the gas/liquid fuel is typically injected from the wall in the scramjet combustor, gas/liquid jets in supersonic crossflow have been widely studied. As the liquid jet atomization process of transverse liquid jet in supersonic crossflow is very complicated, the physical mechanism and determining factors have not been well understood, requiring further research on this subject.