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

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
권호 표지
DOI QR코드

DOI QR Code

Determination of Thrust Distribution in the Supersonic Combustor

초음속 연소기 내부의 추력 분포 계산

  • Published : 2003.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

The ideal thrust function is used to determine the local thrust of supersonic combustor. Method of thrust determination from measured pressures are applied to the Mach 2.5 model supersonic combustor. In this application, measured pressures from the experiments in the University of Michigan are used to determine the local thrust of supersonic combustor. Marginal results of local thrust are obtained and discussed. Combustion and wedge affect thrust distributions in the upstream region significantly. The thrust determination from pressure measurements can be a simple, feasible and applicable method, especially when thrust stand is not available.

본 논문에서는 이상적인 추력 방정식을 이용하여 초음속 연소기의 국부 추력을 계산하였다. 측정압력으로부터 추력을 결정하는 방법을 마하수 2.5의 초음속 연소기에 적용하였다. 추력계산을 위해서 미시간대학에서 실험한 압력측정치를 사용하였다. 초음속 연소기 내부의 국부추력을 계산하여 연소와 쐐기의 존재가 연소기 상류 부문의 추력에 많은 영향을 주었음을 발견하였다. 측정된 압력으로부터 추력을 계산하는 방법은 특히 고가의 추력특정 장치가 없는 경우에도 사용이 가능한 간단하고 실용적인 방법이 될 수 있을 것이다.

Keywords

References

  1. Huh, H., and Driscoll, J. F., "Shock-wave-Enhancement of the Mixing and the Stability Limits of Supersonic Hydrogen-Air Flames," Proceedings of the Combustion Institute, Vol. 26, 1996, pp. 2933-2939. https://doi.org/10.1016/S0082-0784(96)80135-4
  2. Kim, J., Huh, H., Yoon, Y., Jeung, I. and Choi, J., "Effects of Shock Waves on a Supersonic Hydrogen-Air Jet Flame in a Model Scramjet Combustor," The 2nd Asia-Pacific Conference on Combustion, Tainan, Taiwan, May 9-12, 1999.
  3. 김지호, 허환일, 최정열, 윤영빈, 정인석, "모델 스크램제트 연소기에서의 초음속 수소-공기 제트 화염에 대한 충격파의 영향," 한국항공우주학회지, Vol. 27, No. 3, 1999, pp. 110-118.
  4. Huh, H., and Kim, J., "Measured Flow Characteristics of a Supersonic Jet Flame/Shock Wave Interaction," Paper No. A136, The Third Asia-Pacific Conference on Combustion, Seoul, Korea, June 24-27, 2001.
  5. Huh, H., Kim, J., and Driscoll, J. F., "Measured Characteristics of Flow and Combustion in Supersonic Flame/Shock Wave Interaction," AIAA paper 2001-3935, The 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Salt Lake City, UT, July 8-11, 2001
  6. Riggins, D. W., "Evaluation of Performance Loss Methods for High-Speed Engines and Engine Components," Journal of Propulsion and Power, Vol. 13, No. 2, 1997, pp. 296-304. https://doi.org/10.2514/2.5162
  7. Riggins, D. W., McClinton, C. R., and Vitt, P. H., "Thrust Losses in Hypersonic Engines Part 1: Methodology," Journal of Propulsion and Power," Vol. 13, No. 2, 1997, pp. 281-287. https://doi.org/10.2514/2.5160
  8. Hiers, R. and Pruitt, D., "Determination of Thrust from Pitot Pressure Measurements," AIAA Paper 2001-3314, The 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Salt Lake City, UT, USA, July 8-11, 2001.
  9. Hiers, R. and Lankford, D., "Design of Stream Thrust Probes in Reacting Flows," AIAA Paper 2002-3735, The 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2002.
  10. Huh, H., and Driscoll, J. F., "Measured Effects of Shock Waves on Supersonic Hydrogen-Air Flames," AIAA Paper 96-3035, The 32nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Lake Buena Vista, FL, USA, July 1-3, 1996.
  11. Huh, H., Kim, J., Kim, Y., and Driscoll, J. F., "Assessment of Thrust from Pressure Measurements of Supersonic Combustor," AIAA paper 2002-4016, The 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Indianapolis, Indiana, July 7-10, 2002.