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

The Society of Naval Architects of Korea (대한조선학회)
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Numerical Analysis on Turning and Yaw Checking Abilities of KCS in Calm Water a Based on Free-Running Simulations

가상 자유 항주를 이용한 KCS 선형의 정수 중 선회 및 변침 성능 해석

  • Yang, Kyung-Kyu (Department of Autonomous Vehicle System Engineering, Chungnam National University) ;
  • Kim, Yoo-Chul (Korea Research Institute of Ships and Ocean Engineering) ;
  • Kim, Kwang-Soo (Korea Research Institute of Ships and Ocean Engineering) ;
  • Yeon, Seong Mo (Korea Research Institute of Ships and Ocean Engineering)
  • 양경규 (충남대학교 자율운항시스템공학과) ;
  • 김유철 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김광수 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 연성모 (한국해양과학기술원 부설 선박해양플랜트연구소)
  • Received : 2021.10.19
  • Accepted : 2021.11.29
  • Published : 2022.02.20
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Abstract

To understand physical phenomena of ship maneuvering deeply, a numerical study based on computational fluid dynamics is required. A computational method that can simulate the interaction between the ship hull, propeller, and rudder will provide informative local flows during ship maneuvering tests. The analysis of local flows can be applied to improve a physical model of ship maneuvering that has been widely used in maneuvering simulations. In this study, the numerical program named as WAVIS that has been developed for ship resistance and propulsion problems is extended to simulate ship maneuvering by free-running tests. The six degree-of-freedom of ship motion is implemented based on Euler angles and the overset technique is applied to treat the moving grid of ship hull and rudder. The propulsion force due to a propeller is calculated by a panel method that is based on the lifting-surface theory. The newly extended code is applied to simulate turning and zig-zag tests of KCS and the comparison with the available experimental data has been made.

Keywords

Acknowledgement

본 연구는 선박해양플랜트연구소 주요사업 "첨단운송체의 항내 운항성능향상을 위한 축척효과를 고려한 운항제어원천기술개발 (PES3860)"의 지원으로 수행된 결과입니다.

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