Numerical Study on the Extrapolation Method for Predicting the Full-scale Resistance of a Ship with an Air Lubrication System

Numerical Study on the Extrapolation Method for Predicting the Full-scale Resistance of a Ship with an Air Lubrication System

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Frictional resistance comprises more than 60% of the total resistance for most merchant ships.Active and passive devices have been here used to reduce frictional resistance, but the most effective and practical device is an air lubrication system.Such systems have been applied in several ships, and their effects have been verified in sea trials.

On the other hand, there are some differences between the results predicted in model tests and those measured in sea trials.In this study, numerical analyses were carried out for a model and a full-scale ship.A new extrapolation method was proposed to improve the estimation of the full-scale resistance of voyage et cie discount code a ship with an air lubrication system.

The volume of fluid (VOF) method was considered for the numerical models of the air layer.The numerical method was validated by comparing the experimental data on the air layer pattern and the total resistance.