Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Calculation and Comparison of Liquid Oxygen Filling System between the KSLV-I Flight Test Data and the Modeling of the KSLV-II Launch Complex

한국형발사체 발사대시스템 산화제공급계 충전 운용 설계의 검증을 위한 나로호 비행시험 실증 자료 분석

  • Seo, Mansu (Launch Complex Development Team, KSLV-II R&D Head Office, Korea Aerospace Research Institute) ;
  • Lee, Jae Jun (Advanced Technology Institute, Hyundai Heavy Industries) ;
  • Hong, Ilgu (Advanced Technology Institute, Hyundai Heavy Industries) ;
  • Kang, Sunil (Launch Complex Development Team, KSLV-II R&D Head Office, Korea Aerospace Research Institute)
  • Received : 2017.06.04
  • Accepted : 2018.05.07
  • Published : 2018.10.01
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Abstract

Korea Space Launch Vehicle (KSLV)-I flight test data and the modified 1-dimensional steady state modeling data from the critical design results of the KSLV-II liquid oxygen filling system operation are compared to validate the reliability of critical design modeling. A comparison of major flow rates and pressure values between test data and calculation results are conducted. The relative errors relative to maximum total flow rate for each cooling, filling, and replenishment mode are determined within 6.7%. Calculated pressure values at the outlet of the pump and the inlet of flow control valves are within 5.1%. The pressure at the inlet of the launch vehicle for each operation mode are within the measured pressure range.

한국형발사체 (KSLV-II) 발사대시스템 상세설계의 산화제 충전 운용 설계를 검증하고자, 나로호 1차 비행 시험 실증 자료과 설계 모델링 유동 해석 결과를 비교하였다. 최대 공급유량에 대비한 유량 비율로 충전 모드별 측정 및 계산값을 비교할 때, 모든 오차는 6.7% 이내이다. 산화제 공급 펌프 후단 및 유량조절 밸브 전단 압력 오차는 5.1% 이내이다. 발사체 공급 전단 최종 압력은 모든 충전 모드에서 실험값의 범위에 포함되는 것을 확인하였다.

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References

  1. Flowmaster V7, "Flowmaster Help," Mentor Graphics Corporation, Wilsonville, O.R., U.S.A., 2015.
  2. Lee, J.J., Park, S., Kang, S., Oh, H. and Jung, E.S., "Analysis on the Filling Mode of Propellant Supply System for the Korea Space Launch Vehicle," Korean Society of Propulsion Engineers Fall Conference, Gyeong-ju, Korea, pp. 485-491, Nov. 2015.
  3. Seo, M., Lee, J.J. and Kang, S., "1-D Calculation of Simultaneous Filling Operation for Three Stages of Liquid Oxygen Filling System in Korea Space Launch Vehicle-II Launch Complex," Korean Society of Propulsion Engineers Fall Conference, Jeongsun, Korea, pp. 837-845, Dec. 2016.
  4. Park, S.Y., Kim, J.H., Park, P.G. and Yu, B.Y., "Analysis on the Filling Mode of Liquid Oxygen to the Launch Vehicle Using Flowmaster." Korean Society of Propulsion Engineers Fall Conference, Gyeong-ju, Korea, pp. 335-338, Nov. 2009.