Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 18, Part 5American Society of Mechanical Engineers, 1999 - Arctic regions |
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Page 30
... efficiency . Propulsion efficiency is further reduced by ice in the flow , ice impacts , and ice blockage . Efficiencies may range from 0.11 to open water values , depending on the overload and the degree of ice interaction ( Molyneux ...
... efficiency . Propulsion efficiency is further reduced by ice in the flow , ice impacts , and ice blockage . Efficiencies may range from 0.11 to open water values , depending on the overload and the degree of ice interaction ( Molyneux ...
Page 34
... efficiency is another valid parameter , provided that the main factors affecting propulsive efficiency in ice are correctly modeled in the ice tank . These are the size , density and velocity of ice pieces , and the flow of ice around ...
... efficiency is another valid parameter , provided that the main factors affecting propulsive efficiency in ice are correctly modeled in the ice tank . These are the size , density and velocity of ice pieces , and the flow of ice around ...
Page 35
... efficiency in open water and in ice . Figure 7 shows a comparison of the overall propulsive efficiency for the two models in 63 mm and 30 mm of level ice respectively . The change in flow pattern near the stern due to the change in skeg ...
... efficiency in open water and in ice . Figure 7 shows a comparison of the overall propulsive efficiency for the two models in 63 mm and 30 mm of level ice respectively . The change in flow pattern near the stern due to the change in skeg ...
Contents
OMAE99PA1135 | 19 |
OMAE99PA1141 | 39 |
PROPELLERICE INTERACTION | 53 |
Copyright | |
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Allen Bay analysis angle Arctic Engineering ASME average boundary brittle calculated Canada channel coefficient component compressive cone Confederation Bridge Conference on Offshore contact area Copyright 1999 crack creep creep deformation crushed deformation density determined diameter distribution dynamic effect equation estimate failure stress Figure floes fracture frequency friction frozen soil full scale gas hydrate Grand Banks horizontal hydrodynamic ice block ice class ice conditions ice force ice loads ice pieces ice sheet ice strength ice thickness iceberg iceberg management icebreaker increase indentation tests indentor interaction layer level ice maximum measured Mechanics and Arctic mm/s Newfoundland Northern Sea Route observed Offshore Mechanics parameters peak Pechora Sea piers pipeline planetary boundary layer predicted pressure ratio Research resistance rubble Sakhalin salinity scantlings scour sea ice sensors shape shear ship shows speed stamukha surface temperature thrust torque values velocity vertical water depth width wind zone