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Experimental and Numerical Investigation of a Double-Acting Offshore Vessel Performance in Level Ice

Abstract

In this paper a numerical model and experimental data are used to investigate the level ice performance of a double-acting intervention vessel. 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 paper also presents the implementation of a random crack size model for more realistic icebreaking behavior, giving more consistent evaluation of the vessel's performance in various ice conditions. The numerical simulations are firstly conducted in model-scale for a direct comparison with the experimental results. The scaling of ship speed and ice resistance is then discussed by comparing the simulation results in both full-scale and model-scale. The effect on the vessel's performance of the different properties of scaled model ice and full-scale sea ice is also assessed.

Category

Academic article

Client

  • Research Council of Norway (RCN) / 146025
  • Research Council of Norway (RCN) / 223254
  • Research Council of Norway (RCN) / 199567
  • Research Council of Norway (RCN) / 203471

Language

English

Author(s)

  • Biao Su
  • Roger Skjetne
  • Tor Einar Berg

Affiliation

  • Norwegian University of Science and Technology
  • SINTEF Ocean / Skip og havkonstruksjoner

Year

2014

Published in

Modeling, Identification and Control

ISSN

0332-7353

Volume

35

Issue

4

Page(s)

317 - 332

View this publication at Cristin