한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제23권2호
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  • Pages.1-12
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  • 2019
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  • 1226-6027(pISSN)
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  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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가변추력을 위한 기체주입식 와류형 분사기의 분무특성

Spray Characteristics of Effervescent Swirl Injectors for Variable Thrust

  • Lee, Wongu (School of Mechanical Engineering, Chungbuk National University) ;
  • Hwang, Donghyun (School of Mechanical Engineering, Chungbuk National University) ;
  • Ahn, Kyubok (School of Mechanical Engineering, Chungbuk National University) ;
  • Yoon, Youngbin (Department of Aerospace Engineering, Seoul National University)
  • 투고 : 2019.01.14
  • 심사 : 2019.03.10
  • 발행 : 2019.04.01
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초록

액체로켓엔진에서의 추력조절을 위해 기체주입식 가변추력 방법에 대한 기초적인 연구를 수행하였다. 기체주입식 가변추력은 간단한 구조로 추력을 조절할 수 있을 뿐만 아니라 밀도 감소에 비례하여 증가된 분사차압에 의해 미립화 성능 증가라는 장점을 갖는다. 본 연구에서는 기체주입식 와류형 분사기를 이용하여 액체 질량유량과 기체주입량의 변화에 따른 분무 불안정, 분무형상, 분무각, 분열 길이와 같은 분무특성을 살펴보았다.

A fundamental study on a gas injection variable thrust method for thrust throttling in a liquid rocket engine was conducted. The gas injection variable thrust has the advantage of not only being able to control the thrust with a simple structure but it also increases the atomization performance through the injection pressure drop that increases in direct proportion to the density reduction. In this study, spray characteristics such as spray instability, spray pattern, spray angle, and breakup length based on changes in the liquid mass flow rate and amount of injected gas were investigated using effervescent swirl injectors.

키워드

참고문헌

  1. Huzel, D.K. and Huang, D.H., Modern Engineering for Design of Liquid-propellant Rocket Engines, 2nd ed., AIAA, Washington D.C., U.S.A., 1992.
  2. Sutton, G.P., Rocket Propulsion Elements, 6th ed., John Wiley & Sons Inc., New York, N.Y., U.S.A., 1992.
  3. Casiano, M.J., Hulka, J.R. and Yang, V., “Liquid-propellant Rocket Engine Throttling: A Comprehensive Review,” Journal of Propulsion and Power, Vol. 26, No. 5, pp. 897-923, 2010. https://doi.org/10.2514/1.49791
  4. Tomazic, W.A., "Rocket-engine Throttling," NACA RM E55J20, 1995.
  5. Dressler, G.A., "Summary of Deep Throttling Rocket Engines with Emphasis on Apollo LMDE," 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Sacramento, C.A., U.S.A., AIAA 2006-5220, Jul. 2006.
  6. Morrell, G., "Rocket Thrust Variation with Foamed Liquid Propellant," NACA RM E56K27, 1957.
  7. Conrad, W., Hannum, N.P. and Bloomer, H.E., "Photographic Study of Liquid-oxygen Boiling and Gas Injection in the Injector of a Chugging Rocket Engine," NASA TM X948, 1989.
  8. Mitchell, J.P., "Technical Report No. 2 of Advanced Throttling Concepts Study," PWA FR 1045, 1964.
  9. Mitchell, J.P., "Technical Report No. 3 of Advanced Throttling Concepts Study," PWA FR 1108, 1964.
  10. Mitchell, J.P., "Final Report No. 2 of Advanced Throttling Concepts Study," PWA FR 1279, 1964.
  11. Rivard, J.G., "New Techniques for Throttleable Bipropellant Rocket Engines," Propulsion Joint Specialist Conference, Springs, C.O., U.S.A., AIAA Paper 1965-560, Jun. 1965.
  12. Sovani, S.D., Sojka, P.E. and Lefebvre, A.H., “Effervescent Atomization,” Progress in Energy and Combustion Science, Vol. 27, No. 4, pp. 483-521, 2001. https://doi.org/10.1016/S0360-1285(00)00029-0
  13. Chen, S.K., Lefebvre, A.H. and Rollbuhler J., “Influence of Ambient Air Pressure on Effervescent Atomization,” Journal of Propulsion and Power, Vol. 9, No. 1, pp. 10-15, 1993. https://doi.org/10.2514/3.11479
  14. Ghaffar, Z.A., Kasolang, S., Hamid, A.H.A., Ow, C.S. and Roseley, N.R.N., “Design, Development and Performance Evaluation of New Swirl Effervescent Injector,” Jurnal Teknologi, Vol. 75, No. 1, pp. 19-25, 2015.
  15. Whitlow, J.D. and Lefebvre, A.H., “Effervescent Atomizer Operation and Spray Characteristics,” Atomization and Sprays, Vol. 3, No. 2, pp. 137-155, 1993. https://doi.org/10.1615/AtomizSpr.v3.i2.20
  16. Lefebvre, A.H., Wang, X.F. and Martin, C.A., “Spray Characteristics of Aerated-Liquid Pressure Atomizers,” Journal of Propulsion and Power, Vol. 4, No. 4, pp. 293-298, 1988. https://doi.org/10.2514/3.23066
  17. Huang, X., Wang, X. and Liao, G., “Visualization of Two Phase Flow inside an Effervescent Atomizer,” Journal of Visualization, Vol. 11, No. 4, pp. 299-308, 2008. https://doi.org/10.1007/BF03182198
  18. Karnawat, J. and Kushari, A., “Controlled Spray Pattern Factor using a Twin-Fluid Swirl Atomizer,” Experiments in Fluid, Vol. 41, No. 4, pp. 649-663, 2006. https://doi.org/10.1007/s00348-006-0191-0
  19. Jedelsky, J., Otahal, J. and Jicha, M., "Effervescent Atomizer for Atomization of Suspensions Containing Large Particle," 22nd European Conference on Liquid Atomization and Spray Systems, Como Lake, Italy, Sep. 2008.
  20. Lee W., Yoon, Y. and Ahn, K., “A Study on the Thrust Throttling Using Gas Injection in Swirl Injectors,” Journal of ILASS-Korea, Vol. 23, No. 4, pp. 159-168, 2018. https://doi.org/10.15435/JILASSKR.2018.23.4.159
  21. Michaelides, E.E., Crowe, C.T. and Schwarzkopf, J.D., Multiphase Flow Handbook, 2nd ed., CRC Press, New York, N.Y., U.S.A., 2016.
  22. Chisholm, D., “Two-phase Flow in Heat Exchangers and Pipelines,” Heat Transfer Engineering, Vol. 6, No. 2, pp. 48-57, 1985. https://doi.org/10.1080/01457638508939624
  23. Kim, D., Im, J., Koh, H. and Yoon, Y., “Effect of Ambient Gas Density on Spray Characteristics of Swirling Liquid Sheets,” Journal of Propulsion and Power, Vol. 23, No. 5, pp. 603-610, 2007. https://doi.org/10.2514/1.20161
  24. Horvay, M. and Leuckel, W., “Experimental and Theoretical Investigation of Swirl Nozzles for Pressure-jet Atomization,” German Chemical Engineering, Vol. 9, No. 5, pp. 276-283, 1986.
  25. Suyary, M. and Lefebvre, A.H., “Film Thickness Measurements in a Simplex Swirl Atomizer,” Journal of Propulsion and Power, Vol. 2, No. 6, pp. 528-533, 1986. https://doi.org/10.2514/3.22937
  26. Sivakumar, D. and Raghunandan, B.N., “Converging Swirling Liquid Jets from Pressure Swirl Atomizers: Effect of Inner Air Pressure,” Physics of Fluids, Vol. 14, No. 12, pp. 4389-4398, 2002. https://doi.org/10.1063/1.1518694
  27. Kang, Z., Wang, Z., Li, Q. and Cheng, P., "Review on Pressure Swirl Injector in Liquid Rocket Engine," Acta Astronautica, Vol. 145, pp. 174-198, 2018. https://doi.org/10.1016/j.actaastro.2017.12.038