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http://dx.doi.org/10.5139/JKSAS.2011.39.4.348

Effect of Injector Geometry on Cryogenic Jet Flow  

Cho, Seong-Ho (서울대학교 기계항공공학부)
Park, Gu-Jeong (서울대학교 기계항공공학부)
Khil, Tae-Ock (서울대학교 기계항공공학부)
Yoon, Young-Bin (서울대학교 기계항공공학부, 항공우주신기술연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.39, no.4, 2011 , pp. 348-353 More about this Journal
Abstract
Characteristics of cryogenic single jet flow were investigated. Liquid nitrogen was injected into a high-pressure chamber and formed single jet. Ambient condition around jet was changed from subcritical to superctirical condition of nitrogen. Injector geometries also were changed. A shape of the jet and core diameter were measured by flow visualization technique, and core spreading angle was calculated. Flow instability was found at atmospheric pressure condition. As ambient pressure increased, core spreading angle was increased and maintained after certain pressure.
Keywords
Supercritical Condition; Cryogenic Jet Injection; Rocket Engine Injector;
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Times Cited By KSCI : 1  (Citation Analysis)
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