Abstract A liquid injection scheme in a supersonic crossflow, namely transverse liquid injection accompanied with a gas jet, is proposed and investigated experimentally and numerically. High-speed photography was adopted to capture the jet spray in the experimental work; while a discrete phase model was utilized to simulate the liquid jet penetration and gas-liquid interaction in the numerical study. The differences between transverse liquid injection with and without an accompanied gas jet were analyzed. The effects of an accompanied gas jet were determined. Both the experimental and computational results indicate that an accompanied gas jet can significantly enhance liquid jet penetration. Simulation results also indicate that gas injection would cause additional total pressure losses.
Highlights Liquid injection accompanied with a gas jet in a supersonic crossflow was proposed. Interaction between liquid jet and counter-rotating vortex pairs was clarified. Effects of the gas jet on the flow field and liquid injection were studied.
Effects of an accompanied gas jet on transverse liquid injection in a supersonic crossflow
Acta Astronautica ; 159 ; 440-451
2019-01-28
12 pages
Article (Journal)
Electronic Resource
English
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