Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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A Study for Performance Enhancement of Side Jet using a Ramp

램프를 이용한 측 추력기 성능향상에 관한 연구

  • Published : 2004.05.01
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Abstract

An experimental and computational study has been performed for investigation of the jet interaction in supersonic flow with a ramp located behind a sonic, lateral jet. The experimental techniques include schlieren, pressure taps, and Pressure Sensitive Paint. The numerical solver used in this study is AeroSoft's structured flow solver GASP Version 4.0. A Mach 4 crossflow with a pressure ratio of 532, and the 3D ramp was designed by parametric study using GASP. The results showed that the ramp located downstream of the jet decrese the nose-down pitching moment by 70% without a force loss.

초음속 유동하에서 측 추력기의 후방에 램프를 설치하였을 경우의 유통 현상을 실험 및 수치해석을 이용하여 해석하였다. 실험적인 방법으로, 가시화방법으로는 쉴리렌, 압력 측정을 위한 방법으로 압력 탭 (Pressure Tap), Pressure Sensitive Paint를 이용하였으며, 수치해석을 위하여 AeroSoft사의 GASP ver. 4.0을 사용하였다. 실험조건은 자유류의 흐름이 마하수 4 측 추력기와 자유류의 압력비가 532 이었으며 GASP을 사용하여 3D 램프형상에 대한 고찰을 하였다. 위의 모든 결과들은 후방의 램프가 없을 경우와 비교를 통하여 램프를 장착하였을 경우 수직력의 감소없이 피칭다운 모멘트가 70% 정도 감소함을 확인하였다.

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References

  1. Eugene L. Fleeman, Tactical Missile Design, AIAA Education Series, 2001.
  2. F.S. Billig, R.C. Orth, and M. Lasky, "A United Analysis of Gaseous Jet Penetration", AIAA Journal, Vol.0, No. 6, June 1971.
  3. Julius Brandeis and Jacob Gill, "Experimental Investigation of Side-Jet Steering for Supersonic and Hypersonic Missiles", Journal of Spacecraft and Rockets, Vol. 33, No. 3, May-June 1996.
  4. K.W. Naumann, H. Ende, G. Mathieu, and A. George, "Millisecond Aerodynamic Force Measurement with Side-Jet in the ISL SHock Tunnel", AIAA Journal, Vol. 31, No. 6, June 1993.
  5. Huaiguo Fan, and Rodney D.W. Bowersox. "Gaseous Injection through Diamond Orifices at Various Incidence Angle into a Hypersonic Freestream," 39th Aerospace Science Meeting & Exhibit, Reno, AIAA 2001-1050, Jan. 2001.
  6. D.C. Wilcox, "Turbulence Modeling for CFD", 2nd Ed., DCW Industries, INC 5354 Palm Drive, La Caada, CA 91011, 1998.
  7. V. Viti, "Numerical Studies of the Jet Interaction Flowfield with a Main Jet and an Array of Smaller Jets", Ph.D. dissertation, Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, 24060 VA, September 2002.
  8. R.P. Roger and S.C. Chan, "Parameters affecting penetration of a single jet into a supersonic crossflow: A CFD Study-II", AIAA Paper No. 98-0425, January 1998.
  9. A. Nedungadi, and M.J. Lewis ; "A Numerical Study of Fuel Mixing Enhancement Using Oblique Shock/Vortex Interactions", AIAA Paper No. 96-2920, February 1997.
  10. T. Hsieh, "Analysis of the Scaling Effects for missile Configuration with Lateral Thruster", AIAA Paper No. 99-0810, January 1999.
  11. J., McDaniel, C., Glass, D., Staack, and C., Miller, "Experimental and Computational Comparison of an Underexpanded Jet Flowfield", AIAA Paper No. 2002-0305, January 2002.
  12. Cubbison, R.W., Anderson, B.H., Ward, J.J., "Surface Pressure Distributions with a Sonic Jet Normal to Adjacent Flat Surfaces at Mach 2.92 to 6.4," NASA Technical Note D-580, 1961.