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Atomization and Sprays
Facteur d'impact: 1.737 Facteur d'impact sur 5 ans: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN Imprimer: 1044-5110
ISSN En ligne: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.2013007793
pages 605-621

EXPERIMENTAL STUDY ON TRANSCRITICAL SPRAY OF LIQUID AVIATION KEROSENE

Haoyi Song
School of Power and Energy, Northwestern Polytechnical University, Xian, 710072, China
Wei Fan
School of Power & Energy, Northwestern Polytechnical University, Xi'an, 710072, China
Zhencen Fan
School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
Le Jin
School of Power and Energy, Northwestern Polytechnical University, Xian, 710072, China

RÉSUMÉ

High-speed photography was used to study the transcritical spray of liquid aviation kerosene into supercritical environments. The transcritical spray patterns under different conditions were investigated, and the reason spray patterns and breakup length vary was analyzed. It was discovered that ambient temperature and Reynolds number dominate the transcritical injection patterns, and the ambient temperature influences the injection patterns most under transcritical conditions while the Reynolds number is the most important parameter when ambient pressure is subcritical. It was also shown that the "continuous mist" form emerges when the ambient pressure is larger than 2 MPa and the Reynolds number is larger than 5400, and this pattern is unique to transcritical injection. An empirical formula that can predict the breakup length of transcritical injection well was obtained via modifying the previous formula and fitting the experimental data.


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