Numerical analysis of ship motion under linear and nonlinear waves
نویسندگان
چکیده
منابع مشابه
Numerical Calculations of Ship Induced Waves
Nowadays, various numerical methods are developed to extend computational fluid dynamics in engineering applications. One of the most useful methods in free surface modeling is Boundary Element Method (BEM). BEM is used to model inviscid fluid flow such as flow around ships. BEM solutions employ surface mesh at all of the boundaries. In order to model the linear free surface, BEM can be modifie...
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The coupling motion of heave, pitch and roll of intact ship and damaged ship in waves, and the flow of flood water in damaged tank have been simulated based on viscous theory. The calculation model is a 29000 t tanker model moving at a constant speed with damaged tank in midship area. Three cosine waves including head waves, beam waves and oblique waves are simulated by boundary input method re...
متن کاملNonlinear Dynamic Analysis of Ship Capsizing in Random Waves
In this paper, the large amplitude nonlinear rolling motion and capsizing behavior of an offshore supply vessel hull-form is analyzed. In order to investigate the importance of damping, a dynamical perturbation technique (Vishnubhotla, Falzarano and Vakakis, 1998) is applied to the hull using various approximations to the roll damping. The offshore supply vessel (OSV) is probably one of the mos...
متن کاملEffects of Ship Motion on Ship Maneuvering in Waves
Ship maneuvering performance is typically predicted in calm water conditions. This provides very valuable information at the initial ship design stage. However, since the ship always sails in waves, the maneuvering performance of the ship in seaway may be significantly different from calm water condition. Therefore, if the effect of waves and the corresponding motion responses can be included i...
متن کاملNonlinear ship waves and computational fluid dynamics
Research works undertaken in the first author's laboratory at the University of Tokyo over the past 30 years are highlighted. Finding of the occurrence of nonlinear waves (named Free-Surface Shock Waves) in the vicinity of a ship advancing at constant speed provided the start-line for the progress of innovative technologies in the ship hull-form design. Based on these findings, a multitude of t...
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ژورنال
عنوان ژورنال: Scientia Plena
سال: 2017
ISSN: 1808-2793
DOI: 10.14808/sci.plena.2017.049901