Recent advances in physical understanding and quantitative prediction of impinging-jet dynamics and atomization |
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Authors: | Xiaodong CHEN Vigor YANG |
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Institution: | 1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;2. School of Aerospace Engineering, Georgia Institute of Technology, Atlanta GA 30332, USA |
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Abstract: | 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. |
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Keywords: | Computational fluid dynamics Flow instability Flow visualization Gas/liquid interfacial dynamics Impinging-jet atomization Theoretical models Two-phase flow |
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