A Study on the Calculation of Turbofan Engine Installed Performance for a Supersonic Aircraft

초음속 항공기에 장착되는 터보팬엔진의 장착성능산정에 관한 연구

  • Published : 2002.09.01

Abstract

During the preliminary design phase of aircraft development, it is necessary to evaluate many potential engine/airframe combinations to determine the best solution to given set of mission requirements and it is very important to establish a methodology to calculate precisely engine installed performance. It was carried out to calculate turbofan engine installed performance of a supersonic aircraft for a given engine/aircraft configuration. Thus "Thrust minus drag accounting system" was introduced to identify and calculate the elements of installed thrust or installed propulsive force by using the database based on wind tunnel test data. This paper describes the calculated results of installed thrust of turbofan engine for a supersonic aircraft. aircraft.

항공기 개발초기 단계에서 주어진 항공기 임무요구도를 만족하는 최적 설계에 도달하기 위해서는 많은 엔진/기체 조합형상에 대한 적합성평가가 이루어지게 되며, 이를 위해서는 정확한 엔진장착성능을 산정할 수 있는 기법의 확립이 매우 중요하다. 본 연구에서는 초음속 항공기 개발초기 단계에서 주어진 엔진/기체 형상에 대한 엔진장착성능을 산정할 수 있는 기법을 연구하였다. 이를 위해 추력 -항력 산정 시스템(Thrust minus drag accounting system)에 의거하여 엔진 장착 추력 구성요소를 설정하고 풍동시험결과를 기초로 한 데이터베이스를 활용하여 이들 요소를 산정하였으며, 산정된 엔진 장착성능 결과를 제시하였다.

Keywords

References

  1. Hunt, B. L, and Gowadia, S., 'Determination of Thrust and Throttle-Dependent Drag for Fighter Aircraft', AIAA-81-1692, 1981
  2. Covert, E. E., 'Thrust and Drag : Its ' Prediction and Verification' Volume 98 Progress in Astronautics and Aeronautics, AIAA, 1985, pp.207, 29, 211, 214-215
  3. AIR 1703, 'In-Flight Thrust Determination', Society of Automotive Engineers, Oct., 1986, pp.2-6
  4. Program 'SAINT', General Dynamics
  5. Leyland, D. C, 'Intake Aerodynamics', Von Karman Institute Lecture Series, 1988
  6. Seddon J., and Goldsmith E. L., 'Intake Aerodynamics', Collins, London, 1985, pp.219-220
  7. Bergman D., 'Effects of Engine Exhaust Flow on Boattail Drag', AIAA 70-132, 1970
  8. Bergman D. and Lawrence W. G., 'An Afterbody Drag Approximation Procedure (ADAP) for Engine Exhaust Nozzles, General Dynamics, 1975
  9. 'Report of the Working Group on Aero-dynamics of Aircraft Afterbody', AGARD Advisory Report No. 226, June 1986