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http://dx.doi.org/10.6108/KSPE.2019.23.4.070

Preliminary Combustion Tests in Bi-Swirl Coaxial Injectors Using Gaseous Methane/Gaseous Oxygen Propellants  

Hwang, Donghyun (School of Mechanical Engineering, Chungbuk National University)
Bak, Sujin (School of Mechanical Engineering, Chungbuk National University)
Ahn, Kyubok (School of Mechanical Engineering, Chungbuk National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.23, no.4, 2019 , pp. 70-80 More about this Journal
Abstract
Combustion tests using six bi-swirl coaxial injectors with different shapes and recess lengths were performed in a model combustion chamber capable of flame visualization. By utilizing gaseous methane and gaseous oxygen instead of actual propellants, the effects of injector design and experimental conditions on the flame structure and combustion stability were analyzed. It was found that not only the experimental conditions but also the injector geometry such as the recess length and orifice diameter had a considerable influence on the combustion stability. In addition, it was confirmed that the heat release pattern changed with the occurrence of combustion instability.
Keywords
Bi-Swirl Coaxial Injector; Combustion Instability; Flame Structure; Recess Length;
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Times Cited By KSCI : 1  (Citation Analysis)
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