Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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A Study on the Resistance Performance of Catamarans with Modified-Reverse Bow

반전형 선수부 형상을 가진 쌍동선 저항성능에 관한 연구

  • 김도정 ((재)한국조선해양기자재연구원) ;
  • 오우준 ((재)한국조선해양기자재연구원) ;
  • 김정은 ((재)한국조선해양기자재연구원) ;
  • 나현호 ((재)한국조선해양기자재연구원) ;
  • 최홍식 (신우산업(주))
  • Received : 2018.09.21
  • Accepted : 2018.12.28
  • Published : 2018.12.31
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Abstract

In this study, we analyzed the resistance performance and running attitude of a catamaran by numerical analysis with a conventional bow, which is generally applied, and a reverse, protruding bow. The shape of the reverse bow was compared through numerical analysis and model tests. The reverse bow shape showed an improved wave pattern by shifting the generation position of the forward divergent wave to the aft in comparison with a conventional bow shape. This effect was found to be effective in determining resistance and stable running attitude. The hull resistance improved by about 2.95 %. The comparative numerical analysis and model test for the reverse bow shape completed in this study should be useful for future hull design application.

본 연구에서는 쌍동선체의 선수형상에 대해 일반적으로 적용되고 있는 재래식과 선수 돌출의 반전형 선수 형상에 대한 저항성능 및 항주자세를 수치해석을 통해 분석하고, 반전형 선수형상에 대해서는 모형시험을 통하여 수치해석과 비교분석하였다. 반전형 선수형상은 재래식 선수형상보다 선수 발산파 파정의 생성위치를 선미방향으로 이동시켜 개선된 조파현상을 보였으며, 저항 및 안정된 항주자세 결정에 효과적이며 선체 저항이 약 2.95 % 개선되었다. 반전형 선수형상에 대한 수치해석 및 모형시험 비교분석 자료는 향후 선형설계 활용에 유용할 것으로 판단된다.

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References

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