Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Optimal Design of Two-Dimensional Hypersonic Intake Geometry

2차원 극초음속 흡입구 형상 최적 설계

  • Kim, Chae-Hyoung (Propulsion Test and Evaluation Team, Korea Aerospace Research Institute) ;
  • Jeung, In-Seuck (School of Mechanical and Aerospace Engineering, Seoul National University)
  • Received : 2014.09.18
  • Accepted : 2014.11.07
  • Published : 2014.12.01
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Abstract

The optimal method to intuitively and systematical design hypersonic intakes is reported. In Mach 7 flow condition, the hypersonic intake model designed by theoretical approach is corrected by CFD(Computational Fluid Dynamics) analysis based on viscous flow condition, leading to the optimum hypersonic intake model. For performance comparison with CFD analysis, the double ramp intake is superior to the single ramp intake. Furthermore, in the off-design condition, the performance of the designed hypersonic intake is little degraded.

극초음속 흡입구를 직관적이며 체계적으로 설계할 수 있는 최적화된 방법을 제시한다. 마하 7의 이론식으로 계산된 극초음속 흡입구는 점성 조건의 전산수치해석을 수행하여 점성에 대한 오차를 보정한다. 전산수치해석을 통한 성능 비교에서 1단 쐐기에 비해 2단 쐐기를 가지는 흡입구 형상이 성능비교에서 좋은 결과를 보였다. 또한 비설계 조건에서 극초음속 흡입구의 성능은 설계 마하수 성능에 비해 손실이 크지 않았다.

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References

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