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

연소실 및 추진제 변화에 따른 고체로켓 모터의 L* 불안정에 관한 연구

  • 이동희 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 류승현 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 주성민 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 김준성 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 문희장 (한국항공대학교 항공우주 및 기계공학부) ;
  • 성홍계 (한국항공대학교 항공우주 및 기계공학부) ;
  • 양준서 (국방과학연구소)
  • Received : 2015.11.02
  • Accepted : 2015.12.10
  • Published : 2015.12.31

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

References

  1. F.E.C. Culick, "Combustion Instabilities in Solid Propellant Rocket Motors", von Karman Institute, 27-31 May 2002, pp. 10.
  2. 윤명원, 김경무, "고체로켓 모터의 연소불안정 사례분석", 항국항공운항학회지 제31권 제1호, 2003.2, pp. 133-140.
  3. Fred S. Blomshield, "Lessons Learned in Solid Rocket Combustion Instability", Naval Air Warfare Center Weapons Division, china lake, CA, 93555, 2006.
  4. Luigi De Luca, Edward W. Price, Martin Summerfield, "Nonsteady Burning and Combustion Stability of Solid Propellants", Progress in Astronautics and Aeronautics, July 1992, pp. 43-44.
  5. R. Akiba and M. Tanno, "Low Frequency Instability in Solid Propellant Rocket Motors", Proceedings of the 1st Symposium (International) on Rockets and Astronautics, Tokyo, 1959, pp. 74-82.
  6. L. Crocco and S.I. Cheng, "Theory of Combustion Instability in Liquid Propellant Rocket Motors", AGARDograph No. 8, Butterworths Scientifix Publications, London, 1956.
  7. F.A. Anderson, L.D. Strand, and R.A. Strehlow, "Low Pressure Rocket Extinction", AIAA Journal, Vol. 1, No. 11(1963), pp. 2669-2671. https://doi.org/10.2514/3.2150
  8. Robert Sehgal and Leon Strand, "A Theory of Low-Frequency Combustion Instability in Solid Rocket Motors", Jet Propulsion Laboratory, California Institute of Technology, Pasadena, Calif, pp. 696-702.
  9. H.S. Tsien, "Servo-Stabilization of Combustion in Rocket Motors", Journal of the American Rocket Society, Vol. 22, No. 5, 1952, pp. 256-262 https://doi.org/10.2514/8.4488
  10. F.E.C. Culick, "Unsteady Motions in Combustion Chambers for Propulsion System", RTO AGARDoograph, 2006.
  11. 기태석, 하동성, 진정근, 이호성, 윤현걸, "핀틀을 장착한 고체추진기관의 비정상 연소 성능 분석", 한국추진공학회지 제19권 제1호, 2015.2, pp. 68-75. https://doi.org/10.6108/KSPE.2015.19.1.068
  12. E.W. Price, "L* Instability", Nonsteady Burning and Combustion Stability of Solid Propellants, 1992, Chapter 9 pp. 325-361.