Recent advances in physical understanding and quantitative prediction of impinging-jet dynamics and atomization  

作　　者：Xiaodong CHEN Vigor YANG 

机构地区：[1]School of Aerospace Engineering,Beijing Institute of Technology [2]School of Aerospace Engineering,Georgia Institute of Technology

出　　处：《Chinese Journal of Aeronautics》2019年第1期45-57,共13页中国航空学报（英文版）

基　　金：sponsored partly by the National Natural Science Foundation of China (Nos. 11772343 and 11402274);partly by the Beijing Institute of Technology Research Fund Program for Young Scholars

摘　　要：Impinging-jet injectors are widely used in liquid propulsion applications, since their simple configuration provides reliable and efficient atomization. The flowfield involves a series of complicated spatio-temporal evolutions. Much effort has been directed toward understanding the underlying physics and developing quantitative predictions of impinging-jet atomization. This paper summarizes the recent advances in this direction, including state-of-the-art theoretical, experimental, and numerical studies, along with representative results. Finally, concluding remarks address remaining challenges and highlight modeling capabilities of high-fidelity simulations.Impinging-jet injectors are widely used in liquid propulsion applications, since their simple configuration provides reliable and efficient atomization. The flowfield involves a series of complicated spatio-temporal evolutions. Much effort has been directed toward understanding the underlying physics and developing quantitative predictions of impinging-jet atomization. This paper summarizes the recent advances in this direction, including state-of-the-art theoretical, experimental, and numerical studies, along with representative results. Finally, concluding remarks address remaining challenges and highlight modeling capabilities of high-fidelity simulations.

关 键 词：Computational fluid DYNAMICS FLOW instability FLOW visualization Gas/liquid interfacial DYNAMICS Impinging-jet ATOMIZATION Theoretical models Two-phase FLOW 

分 类 号：V[航空宇航科学技术]