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http://dx.doi.org/10.12985/ksaa.2015.23.4.030

Effect of Combustors and Propellant Parameters on the L* Instability of Solid Rocket Motors  

Lee, Donghee (한국항공대학교 대학원 항공우주 및 기계공학과)
Ryu, Seunghyun (한국항공대학교 대학원 항공우주 및 기계공학과)
Joo, Seongmin (한국항공대학교 대학원 항공우주 및 기계공학과)
Kim, Junseong (한국항공대학교 대학원 항공우주 및 기계공학과)
Moon, Heejang (한국항공대학교 항공우주 및 기계공학부)
Sung, Honggye (한국항공대학교 항공우주 및 기계공학부)
Yang, Juneseo (국방과학연구소)
Publication Information
Journal of the Korean Society for Aviation and Aeronautics / v.23, no.4, 2015 , pp. 30-35 More about this Journal
Abstract
In this paper, a theoretical study of low frequency non acoustic instability, the $L^*$ instability, of a solid rocket motor is investigated. The $L^*$ stability criterion is determined by analysing the $L^*$ stability curves of two very distinct propellants for five different geometrical combustors. The $L^*$ instability of two extreme fuels showed totally different behavior in terms of operating pressure of the combustor. A parametric study on the stability for different chamber volume and different throat area keeping constant $L^*$ is conducted and analyzed. It was found that one of the main parameters, the non-dimensional critical characteristic time, requires an enough margin from the critical $L^*$ stability curve.
Keywords
Combustion Instability; $L^*$; Solid Rocket Motor; Stability Curve;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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