engleski

Uncertainties related to the estimation of added resistance of a ship in waves

Reliable estimation of added resistance represents an important step in ship design for realistic conditions, giving a more accurate picture of ship behaviour complementing the traditional calm water considerations. In this work a comparison of different methods of added resistance assessment is given, along with the associated uncertainties that originate from their theoretical assumptions, simplifications, neglected effects or theory implementation. Assessment of the uncertainties, acknowledging limitations and inaccuracies of added resistance estimations, is necessary in order to establish the range on which the methods show satisfactory representation of the reality. When errors and modelling uncertainties in outputs are identified and/or quantified, various approaches can be considered in order to reduce uncertainty and improve overall accuracy and reliability of added resistance predictions.

added resistance

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