Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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An Experimental Study On Characteristics of Flame and Combustion Stability of Coaxial Jet Injectors

동축형 제트 분사기의 화염 및 연소 안정성 특성에 관한 실험적 연구

  • Son, Jinwoo (Department of Mechanical Engineering, Sejong University) ;
  • Min, Yong Ho (Department of Mechanical Engineering, Sejong University) ;
  • Sohn, Chae Hoon (Department of Mechanical Engineering, Sejong University)
  • Received : 2016.03.28
  • Accepted : 2016.05.24
  • Published : 2016.06.30
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Abstract

Flame characteristics and combustion stability of a swirl coaxial injector are studied experimentally. Characteristics of flame and combustion instability are analyzed with the parameter of MFR (momentum flux ratio) using hexane instead of kerosene. Flame patterns of blue and yellow are changed with variable MFR. Combustion instabilities are measured and analyzed by adopting a model chamber. Combustion instability mapping is made by evaluating damping factor at the 2 L (second longitudinal) mode with variable MFR in 63 cases for operating condition.

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References

  1. Hong Y.S., "Aerospace Engineering", Cheong Moon Gak Publisher, Seoul, Korea, 2007.
  2. Park K.J., Lee J.H. and Yoon Y.B., "Study of Gap Thickness in Gas-centered Swirl Coaxial Injector", Journal of the Korean Society of Propulsion Engineers, pp.450-453, 2015.
  3. "Liquid Rocket Engine Combustion Stabilization Devices", NASA SP-8113, 1974.
  4. Yoon M.W. and Yoon J. K., "Combustion Instability in Liquid Rocket Engines," Journal of the Korean Society for Aeronautical and Space Science, Vol. 25, No. 5, pp. 183-189, 1997.
  5. Oberg C.L., "Combustion Stabilization with Acoustic Cavities", Journal of Spacecraft and Rockets, Vol. 8, No. 12, pp. 1220-1225, 1971. https://doi.org/10.2514/3.30366
  6. Marsden J., Culick F.E.C. and Murray R., "Workshop on Dynamic and Control of Combustion Instabilities in Propulsion and Power System," Pasadena, CA, 1997.
  7. Meyer T.R., Schaefer Z.D., Lightfoot M.D., Danczyk S.A., Talley D. and Gord J.R., "Spray Nonuniformities in Gas-Centered Swirl-Coaxial Injectors," ICLASS 2009, 2009.
  8. Im J.H., Cho S.H. and Yoon Y.B., "Comparative Study of Spray Characteristics of Gas-Centered and Liquid-Centered Swirl Coaxial Injectors", Journal of Propulsion and Power, Vol. 26, No. 6, pp. 1196-1204, 2010. https://doi.org/10.2514/1.48436
  9. Jeon J., Hong M., Han Y.M. and Lee S.Y., "Experimental Study on Spray Characteristics of Gas-Centered Swirl Coaxial Injectors", Journal of Fluids Engineering, Vol. 133, No. 12, 2011.
  10. Miller K., James S., Nicholas N. and William A., "Combustion Instability with a Single-Element Swirl Injector", Journal of Propulsion and Power, Vol. 23, No. 5, pp. 1102-1112, 2007. https://doi.org/10.2514/1.26826
  11. Brian R.P., Collin M. and William E.A., "Response of a Gas-Centered Swirl Coaxial Injector to Tranverse Instabilty", 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011.
  12. Brian R.P., James C.S., James R.E. and William E.A., "Characterization of Gas-Centered Swirl Coaxial Injector Stability in a Subscale Multi-Element Combustor", 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2008.
  13. Smith R., Xia G., Anderson W. and Merkle C.L, "Computational Studies of the Effects of Oxidizer Injector Length on Combustion Instability", 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2010.
  14. Sohn C.H., Kim Y.J., Kim Y.M. and Pikalov V.P., "A scaling method for combustion stability rating of coaxial gas-liquid injectors in a subscale chamber", Journal of Mechanical Science and Technology Vol. 26 No. 11, pp. 3691-3699, 2012. https://doi.org/10.1007/s12206-012-0843-3

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