한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제31권8호
  • /
  • Pages.69-76
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  • 2003
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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막냉각 효과를 고려한 액체로켓 엔진의 연소 특성에 관한 연구

A Numerical Study on the Combustion Characteristics in a Liquid Rocket Engine with Film Cooling Effect

  • 변도영 (건국대학교 항공우주공학과) ;
  • 김만영 (현대자동차 승용디젤엔진시험팀) ;
  • 백승욱 (한국과학기술원 항공우주전공)
  • 발행 : 2003.10.01
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초록

액체로켓 연소기 내의 막냉각 특성 분석을 위한 비회체 분무연소에 대한 수치해석을 수행하였다. 막냉각 연료의 특성에 따른 연소기 벽면의 온도변화를 살펴보기 위하여 막냉각용 연료의 유랑, 막냉각용 액적의 직경, 그리고 공기/연료 혼합비를 매개변수로 한 수치해석을 수행하여 연소기 벽면의 온도는 막냉각용 연료 액적 직경의 변화에는 큰 영향을 받지 않지만 막냉각용 연료 유량 및 공기/연료 혼합비에 영향을 받고 있음을 확인하였다. 또한, 추진기관 벽면으로 전달되는 전도 및 복사열유속을 고찰함으로서 이러한 액체 추진기관의 연소특성을 이해하기 위해서는 열복사 및 물성치의 적절한 고찰이 필요함을 지적하였다.

For stable combustion and safety of a structure of the propulsion system, a cooling system to the liquid rocket engine should be incorporated. In this study, Eulerian-Lagrangian scheme for two phase combustion, nongray radiation and soot formation effect, and film-wall interaction have been introduced to study the effect of film cooling. After briefly introducing the governing equation, combustion characteristics with change of wall temperature has been investigated by varying such parameters as fuel mass fraction for film cooling, diameter of the fuel droplet, overall mixture fraction of oxygen to fuel. Also, radiative heat flux is compared with the conductive one at the combustor wall.

키워드

참고문헌

  1. Lai, Y. G., Przekwas, A. J., and Nguyen, H., "A Concurrent Multi-Disciplinary Approach for the Analysis of Liquid Rocket Engine Combustors," AIAA-94-3103, 1994
  2. Liang, P. Y., Fisher, S., and Chang, Y. M., "Comprehensive Modeling of a Liquid Rocket Combustion Chamber," J. Propulsion Power, vol. 2, no. 2, pp. 97-104, 1986 https://doi.org/10.2514/3.22851
  3. Badinand, T. and Fransson, T. H., "Radiative Heat Transfer in Film-Cooled Liquid Rocket Engine Nozzles," J. Thermophysics Heat Transfer, vol. 17, no. 1, pp. 29-34, 2003 https://doi.org/10.2514/2.6748
  4. Baumann, W. W. and Thiele, F., "Heat and Mass Transfer in Evaporating Two-Component Liquid Film Flow," Int. J. Heat Mass Transfer, vol. 33, no. 2, pp. 267-273, 1990 https://doi.org/10.1016/0017-9310(90)90097-E
  5. Yan, W. M., "The Effect of Liquid Film Vaporization on Natural Convection Heat and Mass Transfer in a Vertical Tube," The Canadian J. Chemical Engineering, vol. 70, pp. 452-460, 1992 https://doi.org/10.1002/cjce.5450700307
  6. Yan, W. M. and Soong C. Y., "Numerical Study of Liquid Film Cooling in a Turbulent Gas Stream," Int. J. Heat Mass Transfer, vol. 36 no. 16, pp. 3877-3885, 1993 https://doi.org/10.1016/0017-9310(93)90138-V
  7. Yan, W. M. and Soong C. Y., "Convective Heat and Mass Transfer Along a Inclined Heated Plate with Film Evaporation," Int. J. Heat Mass Transfer, vol. 38 no. 7, pp. 1261-1269, 1995 https://doi.org/10.1016/0017-9310(94)00241-M
  8. Roncace, E. A., "Liquid Oxygen Cooling of Hydrocarbon Fueled Rocket Thrust Chambers," J. Propulsion Power, vol. 7, no. 5, pp. 717-723, 1991 https://doi.org/10.2514/3.23384
  9. Aupoix, S., Mignosi, A., Viala, S., Bouvier, F., and Gaillard, R., "Experimental and Numerical Study of Supersonic Film Cooling," AIAA J., vol. 36, no. 6, 1998
  10. Choi, C. E. and Baek, S. W., "Numerical Analysis of a Spray Combustion with Nongray Radiation Using Weighted Sum of Gray Gases Model," Combust. Sci. Tech., vol. 115, pp. 297-315, 1996 https://doi.org/10.1080/00102209608935533
  11. Byun, D. Y., "Film Cooling Phenomena in a Liquid Rocket Engine," Ph. D. Thesis, KAIST, Taejon, Korea, 2000
  12. 변도영, 김만영, 백승욱, “비회체 열복사 및 검댕생성을 고려한 액체로켓 엔진의 연소현상 해석,” 한국항공우주학회지, 투고중, 2003 https://doi.org/10.5139/JKSAS.2004.32.1.074
  13. Li, S. C., Libby, P. A., and Willams, F. A., "Spray Impingement on a Hot Surface in Reacting Stagnation Flows," AIAA J., vol. 33, no. 6, pp. 1046-1055, 1995 https://doi.org/10.2514/3.12526
  14. Mundo, C., Sommerfeld, M., and Tropea, C., "On the Modeling of Liquid Sprays Impinging on Surfaces," Atomization Sprays, vol.8, pp. 625-652, 1998 https://doi.org/10.1615/AtomizSpr.v8.i6.20
  15. Wang, D. M., and Watkins, A. P., "Numerical Modeling of Diesel Spray Wall Impaction Phenomena," Int. J. Heat Fluid Flow, vol. 14, no. 3, 1993
  16. Kang, S. J., "Study of Flow Characteristics and Droplet Size for Impinging Injector," KARI Project Report, 1999
  17. Liu, J. and Tiwari, S. N., "Radiative Heat Transfer Effects in Chemically Reacting Nozzle Flows," J. Thermophysics Heat Transfer, vol. 10, no. 3, pp. 436-444, 1996 https://doi.org/10.2514/3.808