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http://dx.doi.org/10.15435/JILASSKR.2018.23.4.159

A Study on the Thrust Throttling Using Gas Injection in Swirl Injectors  

Lee, Wongu (충북대학교 기계공학부)
Yoon, Youngbin (서울대학교 기계항공공학부)
Ahn, Kyubok (충북대학교 기계공학부)
Publication Information
Journal of ILASS-Korea / v.23, no.4, 2018 , pp. 159-168 More about this Journal
Abstract
Thrust throttling in a liquid rocket engine can be implemented via several ways such as high pressure drop injector, dual manifold, multiple chamber, pintle injector, and gas injection. Thrust throttling using gas injection controls thrust by usually injecting inert gas into propellant through an aerator to reduce the propellant's bulk density. In this study, the outside-in aerator was used in the propellant line to create two phase flow. Closed-type, open-type, and screw-type bi-swirl coaxial injectors were utilized for investigating throttling characteristics such as pressure drop, mixture density, and discharge coefficient according to gas-liquid mass ratio.
Keywords
Thrust throttling; Gas injection; Two phase flow; Swirl injector; Liquid rocket engine;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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