engleski

On the propeller modelling and its effect on hydrodynamic loading and structural response of ship hull appendages

Governed by changes in IMO regulations, shipping industry has turned to the non-standard and novel ways of reducing the ship fuel consumption. One way of improving the overall ship efficiency is by installing Energy Saving Devices (ESDs) which are located near the propeller. These devices operate by changing the flow near the propeller increasing the propeller efficiency, thus providing the same thrust at the lower rotation rate which directly has a positive impact on the ship fuel consumption. When evaluating ESDs usually Computational Fluid Dynamics (CFD) is employed in order to solve the complicated flow field near the propeller considering the fluid viscosity, flow separation at the ship wake and the propeller rotation. Many authors have contributed to the validation of CFD for the ship equiped with the ESD (Kim et al., 2015 ; Sakamoto et al., 2019). Most of the work is usually related to the hydrodynamic efficiency of such devices or the influence of scale effects. Although these subjects are of importance for the overall evaluation of any ESD, their structural response remains vaguely investigated....

propeller ; hydrodynamic loading ; structural response ; energy saving device

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