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Numerical assessment of a double-acting offshore vessel's performance in level ice with experimental comparison

Su, Biao; Skjetne, Roger; Berg, Tor Einar
Journal article, Peer reviewed
Accepted version
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URI
http://hdl.handle.net/11250/2469253
Date
2014
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  • Institutt for marin teknikk [2405]
  • Publikasjoner fra CRIStin - NTNU [20804]
Original version
Cold Regions Science and Technology. 2014, 106-107 96-109.   10.1016/j.coldregions.2014.06.012
Abstract
In this paper a numerical model is used to investigate the level ice performance of a double-acting intervention vessel, and the results are compared with a limited set of experimental data. The icebreaking capability and maneuverability in level ice are analyzed by evaluating the behavior of the vessel when it is running both ahead and astern. The simulated icebreaking patterns, h–v curves, and turning circles in different modes of operation are discussed and compared partly with the corresponding ice model tests. The simulation results can supplement the experimental data by providing more information about the vessel's maneuverability in level ice and identifying the physical foundation for the exhibited performance of the vessel. The paper also presents the implementation of a random crack size model for more realistic icebreaking behavior, giving more consistent evaluation of the ship's performance in various ice conditions.
Publisher
Elsevier
Journal
Cold Regions Science and Technology

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