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A Numerical Study on Bituning of Acoustic Resonator in a Combustion Chamber of Liquid Rocket Engine  

Lee Su-Ryong (서울산업대학교 자동차공학과)
Sohn Chae-Hoon (조선대학교 항공우주공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.10, no.1, 2006 , pp. 1-8 More about this Journal
Abstract
A linear acoustic analysis is conducted to examine bituning of acoustic resonators for acoustic damping in a combustion chamber of liquid rocket engine. Bituned resonators are tuned to the two principal modes, the first tangential(1T) and the first radial(1R) modes. First, the acoustic-damping effect of monotuned resonators is investigated. The damping capacity is quantified by damping factor as a function of the number of the resonators monotuned to 1T or 1R mode. Next, the damping characteristics of the bituned resonators are investigated. From the numerical data, the number of resonators, to be tuned to 1T and 1R modes, respectively, can be selected properly. Furthermore, the concept of resonator bituning is applied to reduce the degradation of damping effect caused by the mode split and thereby, optimal bituning frequencies are found.
Keywords
Bituning; Acoustic Resonator; Liquid Rocket Engine; Acoustic Damping;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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