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

  • 제51권6호
  • /
  • Pages.459-479
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  • 2014
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  • 1225-1143(pISSN)
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  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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선박의 파랑 중 부가저항에 대한 실험과 수치계산의 비교 연구

Systematic Experimental and Numerical Analyses on Added Resistance in Waves

  • 박동민 (서울대학교 조선해양공학과) ;
  • 서민국 (서울대학교 조선해양공학과) ;
  • 이재훈 (서울대학교 조선해양공학과) ;
  • 양경규 (서울대학교 조선해양공학과) ;
  • 김용환 (서울대학교 조선해양공학과)
  • Park, Dong-Min (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Seo, Min-Guk (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Lee, Jaehoon (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Yang, Kyung-Kyu (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Kim, Yonghwan (Department of Naval Architecture and Ocean Engineering, Seoul National University)
  • 투고 : 2014.06.18
  • 심사 : 2014.09.18
  • 발행 : 2014.12.20
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초록

This paper considers experimental and numerical studies on added resistance in waves. As the numerical methods, three different methods, strip method, Rankine panel method and Cartesian-grid method, are applied. The computational results of vertical motion response and added resistance are compared with the experimental data of Series 60($C_B=0.8$) hull, S175 containership and KVLCC2 hull. To investigate the influence of above-still water hull form, a Rankine panel method is extended to two nonlinear methods: weakly-nonlinear and weak-scatterer approaches. As nonlinear computational models, three ships are considered: original KVLCC2 hull, 'Ax-bow' and 'Leadge-bow' hulls. Two of the three models are modified hull forms of original KVLCC2 hull, aiming the reduction of added resistance. The nonlinear computational results are compared with linear results, and the improvement of computational result is discussed. As experimental approach, a series of towing-tank experiment for ship motions and added resistance on the three models (original KVLCC2 hull, 'Ax-bow' and 'Leadge-bow') are carried out. For the original KVLCC2 hull, uncertainty analysis in the measurement of vertical motion response and added resistance is performed in three waves conditions: ${\lambda}/L=0.5$, 1.1, 2.0. From the experimental results, the effects of hull form on added resistance are discussed.

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피인용 문헌

  1. Computational and Experimental Studies on Added Resistance of AFRAMAX-Class Tankers in Head Seas vol.52, pp.6, 2015, https://doi.org/10.3744/SNAK.2015.52.6.471
  2. A Study on Estimation of Added Resistance in Waves Using Modified Radiated Energy Method and Short Wave Correction Method vol.53, pp.1, 2016, https://doi.org/10.3744/SNAK.2016.53.1.62
  3. Experimental investigation on the added resistance of modified KVLCC2 hull forms with different bow shapes vol.231, pp.2, 2017, https://doi.org/10.1177/1475090216643981