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Prestudy on Expendable Turbine Engine for High-Speed Vehicle

초고속 비행체용 소모성 터빈엔진 사전연구

  • 김유일 (국방과학연구소 4기술연구본부 미래추진기술센터) ;
  • 황기영 (국방과학연구소 4기술연구본부 미래추진기술센터)
  • Received : 2011.11.30
  • Accepted : 2012.10.15
  • Published : 2013.02.01

Abstract

A prestudy on expendable turbine engine for high-speed vehicle was conducted. After two possible mission profiles were established to decide the engine requirements, design point analysis was performed with the values of design parameter which were obtained from similar class engines, references, etc. The results showed that specific net thrust and specific fuel consumption with turbine inlet temperature of 3,600 R are 2,599.4 ft/s and 1.483 lb/(lb*h) respectively at the flight condition of sea level, Mach 1.2. It was also found that major design parameters for determining maximum net thrust were turbine inlet temperature for low supersonic and transonic flight speed and compressor exit temperature for high supersonic flight speed from the results of performance analysis on the two possible mission profiles. In addition, simple turbojet engine with an axial compressor, a straight annular combustor, an one stage axial turbine and a fixed throat area converge-diverge exhaust nozzle was proposed as the configuration of simple low cost lightweight turbine engine.

초고속 비행체에 적용 가능한 소모성 터빈엔진 개발을 위한 사전연구를 수행하였다. 엔진 요구도 결정을 위한 가상 운용임무형상을 선정한 후, 유사급 엔진과 참고문헌 등을 통해 확보된 설계변수 값을 활용하여 설계점 해석을 수행하였는데, 해면고도, 마하수 1.2 조건에서 터빈입구온도 3,600 R에 대한 설계점 계산결과, 비추력 2,599.4 ft/s, 비연료소모율 1.483 lb/(lb*h)이 예측되었다. 두 가지 임무형상에 대한 엔진 성능해석결과로부터 엔진 최대 순추력을 결정하는 설계변수는 천음속 및 낮은 초음속영역에서는 터빈입구온도, 높은 초음속 영역에서는 압축기 출구온도임을 확인하였다. 이밖에도 단순, 저가, 경량의 터빈엔진형상으로 축류형 다단압축기와 직류형 연소기, 1단 축류터빈, 고정 수축팽창 노즐이 적용된 단순터보제트엔진을 제시하였다.

Keywords

References

  1. Kretzing, J. R., Snyder, C. D., "Evaluation of High-Mach Turbine Engines for Missile Applications," 26th JANNAF Airbreathing Propulsion Subcommittee Meeting, 01 April 2002, pp.43-55
  2. Benstein, E., "An Assessment of Supersonic Gas Turbine Missile Propulsion Potential", AIAA 89-2471, 1989
  3. Smith, C., Tomlinson, S., Gahn, S., Kretzing, J., Williams, R. and Hulett, W., "The Revolutionary Approach To Time-Critical Long Range Strike (RATTLRS) Propulsion System: Design Challenges and Lessons Learned," AIAA Missile Sciences Conference, AIAA-14-3, 16 November 2006
  4. Mattingly, J. D., Heiser, W. H., Daley, D. H., Aircraft engine design, AIAA, 1987
  5. EARLY, M., "Small Engine Component Technology(SECT) Program Final Report Technical Volume," NASA CR-175078, 1986
  6. Kurzke, J., "The Mission Defines the Cycle: Turbojet, Turbofan and Variable Cycle Engines for High Speed Propulsion," NATO Science and Technology Organization, RTO-EN-AVT-185, 2010
  7. Kurzke, J., GasTurb 10(Software) Manual, 2004