DOI QR코드

DOI QR Code

Analysis of the Influence of FOD by Aircraft Exhaust Wake

항공기 배기후류가 FOD 발생에 미치는 영향 분석

  • 조환기 (청주대학교 항공학부 항공운항학과)
  • Received : 2021.11.17
  • Accepted : 2022.02.21
  • Published : 2022.03.31

Abstract

The exhaust wake of an aircraft engine is discharged in a high temperature and high speed, which can damage objects such as an aircraft in the rear. The exhaust wake can lift small foreign substances lying on the ground or falling off, and the floating foreign substances can enter the intake duct of the aircraft moving from the rear and cause engine FOD (Foreign Object Damage). This study experimentally analyzed how the engine exhaust wake generated from military jet fighters affects the movement of foreign substances and evaluated the effects of foreign substances on the damaged area by measuring wake velocity. The simulation and field experimental results confirmed that the effect of exhaust wake increases as the rear position closer, and that foreign substances lifted by the wake can act as FOD to the adjacent rear aircraft.

Keywords

References

  1. Northrop, Support Information Part I, "UASF Series F-5E Aircraft(TO 1F-5E-2-12-1)", Feb. 2006.
  2. Lewis A. R., and Floyd B. G., "Ingestion of foreign objectives into turbine engines by vortices", NASA TN 3330, Feb. 1955.
  3. Walker, R. E., Stone, A. R., and Shandor, M., "Secondary gas injection in a conicial rocket nozzle," AIAA Journal, 1, 1963, pp.334-338. https://doi.org/10.2514/3.1533
  4. Rossow, V. J., and Brown, A. P., "Effect of jet-exhaust streams on structure of vortex wakes", Journal of Aircraft, 47(2), 2010, pp. 1076-1077. https://doi.org/10.2514/1.47427
  5. Ciffone, D. L., and Pedley, B., "Measured wake-vortex characteristics of aircraft in ground effect", Journal of Aircraft, 16(2), 1979, pp.102-109. https://doi.org/10.2514/3.58491
  6. Garnier, F., Brunet, S., and Jacquin, L., "Modelling exhaust plume mixing in the near field of an aircraft", Annales Geophysicae, 15(11), 1997, p.1468. https://doi.org/10.1007/s00585-997-1468-1