The 12th International Conference on Hydrodynamics
18 – 23 september 2016, Egmond aan Zee, The Netherlands
Home Program Author Index Search

AN ANALYSIS METHOD TO EVALUATE THE ADDED RESISTANCE IN SHORT WAVES CONSIDERING BOW WAVE BREAKING


Go-down ichd2016 Tracking Number 95

Presentation:
Session: Ship hydromechanics resistance IV
Room: Room 1
Session start: 10:30 Tue 20 Sep 2016

BongJun Choi   b.choi@tudelft.nl
Affifliation: Delft University of Technology

Rene H.M. Huijsmans   R.H.M.Huijsmans@tudelft.nl
Affifliation: Delft University of Technology


Topics: - Ship hydrodynamics resistance, propulsion, powering, seakeeping, manoeuvrability, slamming, sloshing, impact, green water

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.