Research on Scale Effect of Resistance Components for Full-Formed Ship Based on Large-Scale Model Towing Test

In recent years, the International Maritime Organization (IMO) has gradually introduced more stringent new Ship Energy Efficiency Design Index (EEDI) bills, and transport ships are inclined to reduce speed increase length square coefficient meet design requirements. However, size of ship model that can be accommodated in towing tank is seriously limited. Under action scale effect, accuracy prediction results resistance performance large particularly prominent. To break through limitations test site, a large-scale system data analysis method port were established. By comparing with small-scale tests tank, applicability 1957 ITTC friction line Grigson full-formed was analyzed, effects components also examined. The show effect form factor weak. three-dimension based on empirical formula mixed-form ITTC-Grigson suitable for predicting ships.