Numerical simulation of ship performance in level ice : A framework and a model

Fang Li*, Floris Goerlandt, Pentti Kujala

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Ship performance in level ice involves problems such as attainable speed and maneuverability under different ice thickness. As the alternative to analytical methods, numerical simulation models have been proposed in recent years to improve the accuracy and to analyze more complex operations. However, current numerical models use quite diverse approaches to model the icebreaking components, and focus on rather different aspects, while the choices need more justification. The primary aim of this paper is to propose a framework for the development of effective and efficient numerical models to simulate ship performance in level ice, based on state-of-the-art knowledge of ship-ice interaction. This covers a discussion of modelling purposes and a hierarchical decomposition of the problem, followed by a strategy and two methods which could be applied to improve accuracy and credibility, as well as methodology of validation. Following the proposed framework, a numerical model is proposed as a prototype model, which simulates ship performance in level ice, and can be developed further in future. The numerical simulation results are compared with full-scale measurement results of a ship on the Baltic Sea, indicating reasonable estimation of ship turning. This implies the validity of the model as a prototype of the proposed framework.

Original languageEnglish
Article number102288
Number of pages17
JournalApplied Ocean Research
Volume102
Early online date25 Jul 2020
DOIs
Publication statusPublished - Sep 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Framework
  • Level ice
  • Numerical simulation
  • Ship maneuvering
  • Ship performance in ice

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