The model ship Infuture is a double-acting general cargo vessel which breaks ice astern. Basic information of the vessel is listed in Table 1. The ship is designed to break 0.6m level ice with speed of 2knots astern. The ice class is IAS according to Finnish-Swedish ice class rules. ...
vessel in an early design stage as precisely as possible. However, there may be constraints for the bow geometry due to ice class requirements. Important ice class rules are given by the Finnish Transport Safety Agency, TraFi (TraFi, 2010), and the Russian classification society RMRS (Russian...
Figure 5 presents the comparison of the hydrodynamic coefficients KT, KQ and η0 of the ice-class propeller under the ice-blockage condition at σn = 1.5. It can be observed that the CFD results are in line with the EFD results, having the same trends and keeping the error within 3.0%...
During prolonged interactions between the propeller and ice, when the DAS vessel overcomes the ridge astern (propellers forward), these processes significantly reduce the propulsion of the vessel and may lead to a stop. The impact of an ice moment on the MEE that exceeds its design value can ...
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The grillage is designed according to FSICR IA Super class [52]. It is subjected to a displacement-controlled ice floe with combined vertical indenting and horizontal sliding. A user-defined elastic-perfectly plastic ice material model is employed to simulate the ice failure behaviours in this ...
Figure 5 presents the comparison of the hydrodynamic coefficients KT, KQ and η0 of the ice-class propeller under the ice-blockage condition at σn = 1.5. It can be observed that the CFD results are in line with the EFD results, having the same trends and keeping the error within 3.0%...
(1) The CFD-DEM method can reasonably simulate the self-propulsion of an ice class polar transport ship and capture the flow field near the ship, propeller, and rudder. Under design draft conditions, the brash ice is sucked by the propeller due to its rapid rotation. (2) Numerical simulati...