Model Tests on Ice-Rubble Size and Ship Resistance in Ice Rubble

摘要

Described here are the results of model tests on resistance to ship-hull motion through a thick layer of ice rubble; layer thickness was 45% rubble size on ice-rubble resistance. It was found that as ice-rubble size increased so did the resistance encountered by the test hull. However, it was found also that a layer of mush ice produced a greater resistance than did layers comprised of ice blocks. Ship resistance generally increased with increasing ship speed. However, the relationships between component resistance terms, ship speed and ice-rubble size were found to be somewhat more complex.