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SUMMARY:Operation of Ships in Icy Waters at High Speed - Kevin Maki (Unive
 rsity of Michigan)
DTSTART:20220926T103000Z
DTEND:20220926T110000Z
UID:TALK178361@talks.cam.ac.uk
DESCRIPTION:Human activity in the Arctic increases each year as the climat
 e and polar ice conditions continue to evolve. The polar regions have grea
 t potential for both fossil fuel and renewable energy\, human curiosity ha
 s lead to more cruise ships traveling in polar icy waters\, and commercial
  vessels see the northern routes as new alternatives for international tra
 de. With increased human activity there is an interest to travel at higher
  speeds when the ice conditions are sufficiently open. The operation of a 
 ship at high speed in open water surrounded by level ice can be considered
  a novel case of operation in confined waters. The ice sheets on either si
 de of the vessel and the bottom act to restrict the flow generated by the 
 ship. Other more common examples of confined waters are transit in rivers\
 , fjords\, or manmade canals. Whenever a waterway is confined\, whether it
  be by ice or land\, the ship is subject to unsteady motions from soliton 
 generation and substantial changes in the sinkage\, trim\, and drag. In th
 is talk the operation of ships at high speed in an open-water lead is exam
 ined to understand how proximity to ice influences the ship performance. C
 omputational fluid dynamics is used to predict the hydrodynamic solution w
 hen a vessel is traveling at wide range of forward speeds\, including Frou
 de numbers of greater than one. The influence of channel width and ice thi
 ckness are investigated. Also the influence of the ship-wave on the ice sh
 eet is examined to assess the role of ship waves on the breakup of the ice
 .
LOCATION:Seminar Room 1\, Newton Institute
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