Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Wind Tunnel Test of Aerodynamic Forces and Wind Pressures Acting on Muilti-layer Radom in Active Phased Array Radar

풍동실험을 통한 능동위상배열레이더에서 다층레이돔에 작용하는 공기력과 풍압의 실험적 연구

  • Yim, Sung-Hwan (Mechanical Engineering R&D Lab, LIG NEX1. Co., Ltd.) ;
  • Kang, Kwang-Hee (Mechanical Engineering R&D Lab, LIG NEX1. Co., Ltd.) ;
  • Choi, Ji-Ho (Mechanical Engineering R&D Lab, LIG NEX1. Co., Ltd.) ;
  • Lee, Seung-Ho (KOCED Wind Tunnel Center, Chonbuk National University) ;
  • Kwon, Soon-Duck (KOCED Wind Tunnel Center, Chonbuk National University)
  • 임성환 (LIG 넥스원(주) 기계연구센터) ;
  • 강광희 (LIG 넥스원(주) 기계연구센터) ;
  • 최지호 (LIG 넥스원(주) 기계연구센터) ;
  • 이승호 (전북대학교 대형풍동실험센터) ;
  • 권순덕 (전북대학교 대형풍동실험센터)
  • Received : 2013.11.06
  • Accepted : 2014.01.17
  • Published : 2014.02.05
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Abstract

In this paper, we investigated the sensitivity of aerostatic force coefficients of multi-layer radom in the various wind speeds. The test was conducted in KOCED Wind Tunnel Center in Chonbuk National University, and wind speeds were in the range from 5 m/s to 26 m/s in order to determine the Reynolds number independence. The test results of present multi-layer radom were not affected by the Reynolds number, The maximum positive pressure coefficient was found to be 1.08 at the center of the front of the plane in angle of attack of 0 degree, the maximum negative pressure coefficient was -2.03 at the upper right corner in angle of attack of 120 degree, while maximum drag coefficient was 1.11 in angle of attack of 180 degree.

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References

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