A numerical study of interaction between ice particles and complex ship structures

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DOIResolve DOI: http://doi.org/10.4043/27398-MS
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TypeArticle
Proceedings titleArctic Technology Conference
ConferenceArctic Technology Conference, October 24, 2016, St. John's, Newfoundland and Labrador, Canada
Article numberOTC-27398-MS
Pages# of pages: 11
AbstractThis paper describes a numerical method of ship-ice interaction. Identifying an operational risk to an ice breaking vessel such as serious interference or sudden efficiency reduction by ice is necessary at early design stage. CFD-DEM coupled approach can be used for this prediction. Combining two numerical approaches, free floating ice particles can interact with the surrounding fluid as well as the rigid hull surface effectively. Ship-ice interaction becomes more complicated around the stern area considering the swirling flow of the propulsion device and the complex hull appendages. Using CFD-DEM method, simulation of ship-ice interaction during the astern operation was carried out. To evaluate the simulation performance, three example cases were conducted. The first and second case is the astern operation with/without the propeller action. For reducing the computational load, a virtual disc model for the propeller action is selected. Then, a simple sensitivity analysis on the ice friction coefficient was carried out to verify if the friction model is working appropriately. CFD-DEM simulation provides a promising result showing a similar ice jamming and pileup pattern with the physical model test. The suggested method can help to understand the ice movement effectively including the hydrodynamic force and the contact dynamics together.
Publication date
PublisherSociety of Petroleum Engineers
LanguageEnglish
AffiliationOcean, Coastal and River Engineering; National Research Council Canada
Peer reviewedNo
NRC numberOCRE-PR-2016-012
NPARC number23001847
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Record identifiereb9a6fa7-510c-4506-a1da-173a2dc2e8f0
Record created2017-04-21
Record modified2017-04-21
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