Setting Method of Resistance Prediction for Large Cutter Suction Dredge
The cutter suction dredger is characterized by its bulky hull and large grooves designed at the bow and stern,which significantly differ from conventional ship designs.These unique features increase the difficulty of resistance prediction,rendering traditional resistance prediction methods insufficient or inapplicable.In order to explore more accurate resistance prediction settings,this paper focuses on a large-scale cutter suction dredger validated through ship model testing.Utilizing STAR-CCM+,two turbulence models,SST k-ω and Realizable k-ε,were employed to conduct calculations of still-water resistance prediction under the conditions of y+=1 and y+=50.The results show that the resistance prediction accuracy under the condition of y+=1 is improved by approximately 6％compared to that under y+=50,and the results by using the SST k-ω model exhibit a 4％improvement over the Realizable k-ε model.The research provides a reliable reference for accurate resistance prediction of self-propelled cutter suction dredgers.
NETL
NSTL
万方数据
