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http://dx.doi.org/10.5139/JKSAS.2004.32.6.104

Effect of ambient gas density and injection velocity on the atomization characteristics of impinging jet  

Lim, Byoung-Jik (서울대학교 기계항공공학부)
Jung, Ki-Hoon (서울대학교 기계항공공학부)
Khil, Tae-Ock (서울대학교 기계항공공학부)
Yoon, Young-Bin (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.6, 2004 , pp. 104-109 More about this Journal
Abstract
On this paper study is concentrated on the breakup and atomization characteristics of spray formed by impinging jet injectors(like-doublet) used in liquid rocket engine(LRE). On the process of breakup and atomization, injection velocity and ambient gas pressure are the main parameters, so that these are used as variables that specify the experimental condition. Injection velocity varied from 3m/s to 30m/s and ambient gas pressure changed from 0.1MPa to 4.0MPa with nitrogen gas. As results, measured physical quantities decreased with increasing injection velocity and ambient gas pressure. But the decreasing ratios are different from those of the theory.
Keywords
impinging jet injector; image processing method; linear instability theory; stationary anti-symmetric wave theory;
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