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http://dx.doi.org/10.15435/JILASSKR.2019.24.2.82

Characteristics of Gel Propellant Spray from a Pintle Injector  

Lee, Keonwoong (한국항공대학교 대학원 항공우주및기계공학과)
Song, Wooseok (한국항공대학교 대학원 항공우주및기계공학과)
Hwang, Joohyun (한국항공대학교 대학원 항공우주및기계공학과)
Hwang, Yongseok (국방과학연구소 제4 기술연구본부)
Koo, Jaye (한국항공대학교 항공우주및기계공학부)
Publication Information
Journal of ILASS-Korea / v.24, no.2, 2019 , pp. 82-88 More about this Journal
Abstract
Shear coaxial injectors were commonly used in rocket engine combustor. They showed good combustion performance. However it is not easy to control the thrust. Pintle injectors were not as popular as the coaxial injectors so far, they have a great advantage over the coaxial injectors. That is, it is relatively easy to control the thrust. Spray characteristics of gel type propellant from movable sleeve pintle injector were investigated. Water with 0.05% of Carbopol 940 was used as gel simulant instead of kerosene gel combined with Thixarol ST for academic purpose. Experiments were performed in various temperature, pressure and pintle opening condition. The results were compared with neat liquid spray. It is also verified that the capabilites of the injector by adjusting the pintle opening.
Keywords
Multi-hole pintle injector; Gel propellant; Spray visualization;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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