Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Azimuth Thruster Cavitation Test Apparatus Development and Cavitation Performance Study

아지무스 추진기 캐비테이션 시험 장치 개발 및 캐비테이션 성능 연구

  • Jongwoo Ahn (Korea Research Institute of Ships and Ocean Engineering) ;
  • Hanshin Seol (Korea Research Institute of Ships and Ocean Engineering) ;
  • Hongseok Jeong (Korea Research Institute of Ships and Ocean Engineering) ;
  • Youngha Park (Korea Research Institute of Ships and Ocean Engineering) ;
  • Sanghwan Kim (Korea Research Institute of Ships and Ocean Engineering) ;
  • Jungil Han (HD HYUNDAI MIPO CO., Ltd.)
  • 안종우 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 설한신 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 정홍석 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 박영하 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김상환 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 한정일 (HD현대미포(주))
  • Received : 2024.02.25
  • Accepted : 2024.05.09
  • Published : 2024.06.20
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Abstract

In order to investigate cavitation performance for the azimuth thruster in Large Cavitation Tunnel (LCT), the cavitation test apparatus was designed and manufactured. Generally the model scale is determined by the pod dynamometer with about 70mm diameter. Recently as ships with azimuth thruster have become bigger, the problem of the model ship installation was occurred. The model ship with pod dynamometer couldn't be installed in the LCT test section. The cavitation test apparatus and technique which can conduct the cavitation test without pod dynamometer were developed. The cavitation tests were conducted in torque identity method instead of thrust identity method. The target ship with azimuth thruster is 18K LNG bunkering vessel. As the full-scale ship test was conducted, the model cavitation tests were conducted at the same operating conditions. The fluctuating pressure levels of the full-scale ship were compared to those of the model tests. Another model cavitation test was conducted in the foreign institute and the cavitation observation results were compared to those of LCT. Through the comparison with the existing results, it is thought that the cavitation test for the azimuth thruster can be conducted in torque identity method.

Keywords

Acknowledgement

본 연구는 산업통상자원부에서 지원하는 'IMO 해양환경보호 규제대응을 위한 선박 수중방사소음 모니터링 및 소음저감 기술 개발(PNS4680)' 및 기관의 주요사업인 "SMR 선박의 추진기 설계 및 추진시스템 개념설계(PES5121)" 과제의 지원으로 수행되었으며 이에 감사드립니다.

References

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