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http://dx.doi.org/10.20910/JASE.2018.12.4.81

Effect of the distance between the adjacent injectors on penetration and mixing characteristics of the jet in supersonic crossflow  

Kim, Sei Hwan (Daewoo Shipbuilding & Marine Engineering Co., Ltd.)
Lee, Hyoung Jin (Department of Aerospace Engineeinrg, Inha University)
Publication Information
Journal of Aerospace System Engineering / v.12, no.4, 2018 , pp. 81-89 More about this Journal
Abstract
In the present study, a numerical investigation was conducted to analyze the effect of the distance between the adjacent injectors on the characteristics of flow structure, fuel penetration, and air/fuel mixing. Numerical results were validated with experimental data using a single injection. Subsequently, the same injector geometry and properties were applied on a non-reacting flow simulation with multiple injectors. Total pressure loss, penetration height, and mixing efficiency were compared with the distance between the injectors. The results showed that each injected gas merged into a single stream, resulting in the 2D-like flow fields under the condition of short distance and lower mixing efficiency along with higher total pressure loss. When the distance between the injectors increased, total pressure loss reduced and mixing efficiency increased due to the weakening of interactions between the injected gases.
Keywords
Supersonic injection; Multiple injection; Transverse injection; Nonreacting flow; Injector distance;
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Times Cited By KSCI : 2  (Citation Analysis)
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