A study on Atomization Characteristics of the Double Impinging F-O-O-F type Injector with Four Streams for Liquid Rocket

This paper presents the atomization characteristics of the double impinging F-O-O-F type injector with four streams. The phase/Doppler particle analyzer is employed to measure the droplet-size data and the water is used to inert simulant liquids instead of reactive propellant liquids. Droplet mean diameter(SW) and size distribution are measured to investigate the effect of the momentum ratio and the pressure drop variation. This experimental result can be conveniently used to the preliminary design stage of a impinging stream type injector for liquid rocket.