Experimental study on the spray characteristics of a pintle injector element

• DOI: 10.1016/j.actaastro.2022.02.019
• Publication Date: 2022-02-22T06:44:10Z
• Authors: Rui Zhou; Chibing Shen
• Keywords: Spray characteristics; Ligand cone angle; Momentum (technical analysis)

A liquid–liquid pintle injector element was used as the test object to analyze its spray characteristics from four aspects: morphology, dynamic characteristics, velocity distribution, and relation between cone angle momentum ratio. Experimental results indicated that range of area can be adjusted using total When ratio changes in scale 0.04–0.2, remains 45° 70°, where semi-open fan-shaped exhibits most significant uniform energy largest high-speed range, best atomization. The smaller block factor, more sensitive is In particular, an expression including local independent variable accurately predict a injector.