항공우주시스템공학회지 (Journal of Aerospace System Engineering)

  • 제17권4호
  • /
  • Pages.118-125
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  • 2023
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  • 1976-6300(pISSN)
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  • 2508-7150(eISSN)
항공우주시스템공학회 (The Society for Aerospace System Engineering)
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국방과학연구소 Ludwieg Tube 풍동설비 성능개량 연구

A Study on the Wind Tunnel Facility Performance Improvement of ADD Ludwieg Tube

  • 투고 : 2023.04.17
  • 심사 : 2023.07.13
  • 발행 : 2023.08.31
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초록

풍동시험은 유도무기체계 개발에 있어서 필수적인 과정 중 하나이며, 시험 조건 및 용도에 따라 다양한 풍동설비가 존재한다. Ludwieg Tube는 극초음속 유도무기 체계개발에서 매우 유용하며, 고 받음각 시험 및 풍동시험 결과의 반복성, 일관성이 필요한 가운데 풍동시험 설비의 능력보강이 필요하였다. 본 논문에서는 국방과학연구소 Ludwieg Tube가 가졌던 문제점과 노즐, 진공탱크 및 모형지지부 성능개량을 통한 문제해결 방안을 제시하고 풍동시험 간 압력 측정 결과를 바탕으로 해결 방안을 증명하였다.

The wind tunnel test is one of the essential processes in the development of guided missile systems, and various wind tunnel facilities exist depending on the test requirements, various conditions, and their purposes. The Ludwieg tube is very useful in the development of guided missile systems, and we have necessitated the upgrade of the Ludwieg tube in ADD to acquire various test requirements, such as high angle of attack, repeatability, and stability. In this paper, upgrading the nozzle, vacuum tank, and model support is suggested to improve the Ludwieg tube performance, and we demonstrate a result of the solution through pressure measurement.

키워드

참고문헌

  1. Ludwieg, H, "Tube Wind Tunnel: A Special Type of Blowdown Tunnel", AGARD report 143, July 1957.
  2. Koppenwallner, G "Hypersonic Flow Simulation in Ludwieg Tube Tunnel", Symposium on recent advances in Experimental Fluid Dynamics, IIT Kanpur India, 2000.
  3. John D. Anderson, "Fundamentals of Aerodynamics", Chapter 10.3, pp714 (10.32), 1984.
  4. J. C. Sivells, "Aerodynamic design of axisymmetric hypersonic wind-tunnel nozzles", Journal of spacecraft and rockets Vol7. no 11, pp. 1292~1299, 1970 https://doi.org/10.2514/3.30160
  5. S. Ma, "Study on improving flow uniformity at the nozzle exit of Ludwieg tube," Chungnam national university graduate, vi, pp. 52, Feb 2022.
  6. John D. Anderson, "Fundamentals of Aerodynamics", Chapter 8, pp609 (8.65), 1984.
  7. S. Ma, J. Lee, S. Yang, D. Lee, "Comparison of Mach number at nozzle exit according to characteristics of Ludwieg tube nozzle," KIMST, 2022ABS-0166, pp. 1030-1031, June 2022.
  8. J. Lee, D. Lee, S. Yang, S. Ma, J. Lee "Pitot pressure characteristics of ADD Ludwieg tube Wind Tunnel at the Flow Termination Phase," KSAS 2017 Fall Conference, Oct 2017.
  9. J. Lee, D. Lee, S. Yang, S. Ma, J. Lee "Pitot pressure characteristics of ADD Ludwieg tube Wind Tunnel at the Flow Termination Phase," KSAS 2017 Fall Conference, Oct 2017.