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http://dx.doi.org/10.6108/KSPE.2019.23.2.001

Spray Characteristics of Effervescent Swirl Injectors for Variable Thrust  

Lee, Wongu (School of Mechanical Engineering, Chungbuk National University)
Hwang, Donghyun (School of Mechanical Engineering, Chungbuk National University)
Ahn, Kyubok (School of Mechanical Engineering, Chungbuk National University)
Yoon, Youngbin (Department of Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.23, no.2, 2019 , pp. 1-12 More about this Journal
Abstract
A fundamental study on a gas injection variable thrust method for thrust throttling in a liquid rocket engine was conducted. The gas injection variable thrust has the advantage of not only being able to control the thrust with a simple structure but it also increases the atomization performance through the injection pressure drop that increases in direct proportion to the density reduction. In this study, spray characteristics such as spray instability, spray pattern, spray angle, and breakup length based on changes in the liquid mass flow rate and amount of injected gas were investigated using effervescent swirl injectors.
Keywords
Variable Thrust; Gas Injection; Effervescent Swirl Injector; Two Phase Flow; Liquid Rocket Engine;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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