한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제35권1호
  • /
  • Pages.13-23
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  • 2021
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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Numerical Study to Evaluate Course-Keeping Ability in Regular Waves Using Weather Vaning Simulation

  • Kim, In-Tae (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Kim, Sang-Hyun (Department of Naval Architecture and Ocean Engineering, Inha University)
  • 투고 : 2020.06.23
  • 심사 : 2020.12.14
  • 발행 : 2021.02.28
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초록

Since the introduction of the mandatory energy efficiency design index (EEDI), several studies have been conducted on the maneuverability of waves owing to the decrease in engine power. However, most studies have used the mean wave force during a single cycle to evaluate maneuverability and investigated the turning performance. In this study, we calculated the external force in accordance with the angle of incidence of the wave width and wavelengths encountered by KVLCC2 (KRISO very large crude-oil carrier) operating at low speeds in regular waves using computational fluid dynamics (CFD). We compare the model test results with those published in other papers. Based on the external force calculated using CFD, an external force that varies according to the phase of the wave that meets the hull was derived, and based on the derived external force and MMG control simulation, a maneuvering simulation model was constructed. Using this method, a weather vaning simulation was performed in regular waves to evaluate the course-keeping ability of KVLCC2 in waves. The results confirmed that there was a difference in the operating trajectory according to the wavelength and phase of the waves encountered.

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과제정보

This study was carried out with the support of "Experimental Study on the Development of Large Control Algorithm for Multiple Unmanned Ships (project number: 2020R1F1A1071610)," a basic research project of the National Research Foundation of Korea (NRF), and "Development of Autonomous Navigation System with Intelligent Route Planning System (project number: 20200615)," an autonomous ship technology development project of the Ministry of Maritime Affairs and Fisheries, Republic of Korea.

참고문헌

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