An analysis method to evaluate the added resistance in short waves considering bow wave breaking

Conference paper (2016)

Authors

B. Choi Ship Hydromechanics and Structures - Mechanical, Maritime and Materials Engineering
R.H.M. Huijsmans Ship Hydromechanics and Structures - Mechanical, Maritime and Materials Engineering
Research Group
Ship Hydromechanics and Structures (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2016 B. Choi, R.H.M. Huijsmans
Propulsion Impact Slamming Seakeeping Green water Sloshing Manoeuvrability Ship hydrodynamics resistance Powering
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Published Date

2016

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Marine and Transport Technology

Research Group

Ship Hydromechanics and Structures

Abstract

A bow wave breaking is one of the most prominent factors to be considered regarding the nonlinearity of added resistance for a ship. Considering the stability of the bow wave breaking, which is mostly influenced by the ship speed and the waterline entrance angle, can enhance understanding of the nonlinearity. Understanding of the nonlinearity can be improved by considering the stability of the bow wave breaking, which is mostly influenced by the ship speed and the waterline entrance angle. New transfer function containing the ship speed is proposed to make a better representative of the nonlinearity. This method is evaluated with the model test data of the Fast Displacement Ship (FDS) under the short waves condition (λ/L= 0.4). This study has shown that new transfer function can be an efficient analysis method of the ship performance prediction offering intuitive consistency with proposed residual resistance concept. The findings lead to better understanding the nonlinearity considering bow wave breaking.

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