Resistance tests in ice with the USCGC Healy

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TypeArticle
Conference16th International Symposium on Ice, 2-6 December 2002, Dunedin, New Zealand
Subjectice resistance; hull-ice; open water
AbstractModel tests to measure the resistance of a 1:23.7 scale model of the USCGC Healy in ice were conducted at IMD. Results showed that the total ice resistance, which was equal to the total resistance minus the open water resistance, was linearly dependent on velocity, and proportional to ice thickness squared, for constant ice strength and velocity. The model was tested at two hull-ice friction coefficients and the results showed that the hull-ice friction coefficient had a greater effect in thicker ice, but was independent of velocity. Results from varying the ice strength showed an effect, which increased considerably with ice thickness. At 27 mm ice thickness, doubling the ice strength caused RIT to increase by about 25 %; at 76 mm ice thickness, doubling the ice strength caused a 40 % increase in RIT.
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
IdentifierIR-2003-34
NRC number6036
NPARC number8894907
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Record identifier3692e638-92f9-4128-925f-2858454c0c43
Record created2009-04-22
Record modified2016-05-09
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