| Wind Tunnel Test of Aerodynamic Forces and Wind Pressures Acting on Muilti-layer Radom in Active Phased Array Radar |
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Sung-Hwan Yim, Kwang-Hee Kang, Ji-Ho Choi, Seung-Ho Lee, Soon-Duck Kwon |
1Mechanical Engineering R&D Lab, LIG NEX1. Co., Ltd.
2KOCED Wind Tunnel Center, Chonbuk National University |
| 풍동실험을 통한 능동위상배열레이더에서 다층레이돔에 작용하는 공기력과 풍압의 실험적 연구 |
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임성환, 강광희, 최지호, 이승호, 권순덕 |
1LIG 넥스원(주) 기계연구센터
2전북대학교 대형풍동실험센터 |
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| Abstract |
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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. |
| Key Words:
Radome, Wind Tunnel Test, Pressure Coefficient, Angle of Attack, Static Pressure, Negative Pressure |
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