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http://dx.doi.org/10.5139/JKSAS.2020.48.9.703

Effect of Internal Flow Guide in Pintle Tip on Pintle Injector Thruster Combustion  

Lee, Keonwoong (Graduate School, Korea Aerospace University)
Nam, Jeonsoo (Graduate School, Korea Aerospace University)
Radhakrishnan, Kanmaniraja (Graduate School, Korea Aerospace University)
Koo, Jaye (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.9, 2020 , pp. 703-709 More about this Journal
Abstract
Pintle injector is known to have been adopted as injector of Lunar Module Descent Engine (LMDE) and contributed to success of the Apollo program and recently used in merlin engine. In this study, 500N Lab-Scale pintle injector thruster was manufactured and the combustion experiment with LOx/GCH4 was conducted. However, the proto-type thruster was showed some problems, such as low combustion efficiency and melting of pintle tip. To solve these problems, the flow guide in pintle tip was suggested through the CFD simulation. After addition of flow guide module, the combustion efficiency increased and pintle tip did not melt until the end of combustion.
Keywords
Multi-Hole Pintle Injector; Flowguide; Bi-propellant Thruster;
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Times Cited By KSCI : 2  (Citation Analysis)
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