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http://dx.doi.org/10.5139/JKSAS.2008.36.2.179

Simulating Combustion Tests for the Verification of Baffle Gap of Optimal Damping Characteristics in Liquid Rocket Combustors  

Kim, Hong-Jip (한국항공우주연구원 연소기팀)
Lee, Kwang-Jin (한국항공우주연구원 연소기팀)
Choi, Hwan-Seok (한국항공우주연구원 연소기팀)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.2, 2008 , pp. 179-185 More about this Journal
Abstract
Simulating combustion tests have been performed to elucidate the effect of baffle gaps on the optimal damping characteristics in liquid rocket combustors where coaxial injectors are installed. Amplitude of pressure oscillation in model combustion chamber and the combustion stability margin are used to quantify the damping capacitance of baffles. Satisfactory agreement has been achieved with the results of cold acoustic tests. Present results have shown that the optimal gap for high acoustic damping capacity has also the large combustion stability margin in simulating combustion tests. Therefore, the present results can be utilized to determine the baffle length and optimal gap in full-scaled rocket combustors.
Keywords
Combustion Instability; Baffle-forming Injector; Baffle Gap; Combustion Stability Margin; Amplitude; Resonant Frequency;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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