DOKUZ EYLÜL UNIVERSITY INTERNATIONAL SYMPOSIUM SERIES ON GRADUATE RESEARCH 2023, İzmir, Turkey, 14 - 15 December 2023, (Full Text)
The added resistance experienced by a
ship due to “wind” and “wave” significantly influences its speed, fuel
consumption, and overall performance. These forces result from the interaction
between the ship's hull and the surrounding wind and waves. Various factors,
including ship speed, wind speed, wave height, wavelength, and hull shape,
collectively determine the magnitude of the total resistance. The computation
of added resistance assumes a critical role in optimizing ship design and
operation. By accurately predicting drag components, ship designers strive to
formulate hull configurations that minimize drag, thereby enhancing fuel
efficiency and reducing emissions. Ship operators can leverage added resistance
calculations to make informed decisions regarding speed optimization and
routing in various sea states, consequently enhancing the overall performance
of the ship. In this study, added resistance calculations for wind and wave
resistance on the KCS (KRISO Container Ship) model, extensively utilized in
theoretical computations, are carried out, taking into consideration the
environmental conditions of the North Pacific Ocean. The analysis commences by
comparing results from calm water resistance calculations based on towing tank
tests and CFD (Computational Fluid Dynamics) analysis. The investigation then
extends to include added resistance induced by varying wind and sea state
conditions affecting the ship superstructure when transporting 3600 fully
loaded containers at the model scale. Consequently, the impact of added wave
and wind resistance is juxtaposed with calm water resistance, offering insights
for those seeking information on this subject.