Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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COMPUTATIONAL INVESTIGATION OF NOZZLE FLOWFIELDS AT VARIOUS FLIGHT CONDITIONS FOR AIRCRAFT INFRARED SIGNATURE ANALYSIS

항공기 IR 신호 분석을 위한 다양한 비행 조건에서의 노즐 열유동장 해석

  • 전수환 (경상대학교 대학원 기계항공공학부) ;
  • 양영록 (국방과학연구소) ;
  • 문혁 (경상대학교 대학원 기계항공공학부) ;
  • 명노신 (경상대학교 항공우주시스템공학과 및 항공기 부품기술연구소) ;
  • 조태환 (경상대학교 항공우주시스템공학과 및 항공기 부품기술연구소)
  • Received : 2011.05.12
  • Accepted : 2011.08.11
  • Published : 2011.09.30
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Abstract

Aerothermodynamic flowfields of aircraft engine nozzles are computationally investigated at various flight conditions for infrared signature analysis. A mission profile of subsonic unmanned combat aerial vehicle is considered for the case study and associated engine and nozzles are selected through a performance analysis. Computational results of nozzle and plume flowfields using a density-based CFD code are analyzed in terms of thrust, maximum temperature, length and optical thickness of plume. It is shown that maximum temperature, length, and optical thickness of nozzle plume increase for lower altitude and higher Mach number.

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References

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  2. 무인항공기 노즐 형상 변화에 따른 IR 신호 영향성 연구 vol.41, pp.10, 2013, https://doi.org/10.5139/jksas.2013.41.10.779
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