Results 61 to 70 of about 133,149 (202)

The Prediction of Hull Gesture and Flow Around Ship Based on Taylor Expansion Boundary Element Method

open access: yesPolish Maritime Research, 2019
Based on the potential flow theory and traditional boundary element method (BEM), Taylor expansion boundary element method (TEBEM) is introduced in this paper for the prediction of the flow field around ship, as a result, hull gesture and pressure ...
Gong Jiaye, Li Yunbo
doaj   +1 more source

Achieving Drag Reduction with Hullform Improvement in Different Optimizing Methods

open access: yesInternational Journal of Technology, 2020
In general, evaluation of ship hydrodynamic efficiency could be produced by an energy-efficient and concentrated cost function. An optimization method with the representation of hull geometry is one of the preliminary design steps that are most ...
Wiwin Sulistyawati, Purwo Joko Suranto
doaj   +1 more source

Lines optimization of river cruise ship based on numerical simulation of resistance and self-propulsion

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesBased on the numerical simulation of resistance and self-propulsion, the lines optimization of an inland river cruise ship is carried out with resistance and delivered power as the optimization objectives.
Baoguo CHENG   +3 more
doaj   +1 more source

Application of a new multi-agent Hybrid Co-evolution based Particle Swarm Optimisation methodology in ship design [PDF]

open access: yes, 2010
In this paper, a multiple objective 'Hybrid Co-evolution based Particle Swarm Optimisation' methodology (HCPSO) is proposed. This methodology is able to handle multiple objective optimisation problems in the area of ship design, where the simultaneous ...
Cui, Hao, Turan, O.
core   +1 more source

On the importance of antifouling coatings regarding ship resistance and powering [PDF]

open access: yes, 2013
This paper aims to introduce one of the latest investigations on development of marine antifouling coatings and also to demonstrate the importance of the type of antifouling coatings on fouling accumulation and ship resistance/powering.
Demirel, Yigit Kemal   +3 more
core  

Time-frequency analysis of ship wave patterns in shallow water: modelling and experiments

open access: yes, 2018
A spectrogram of a ship wake is a heat map that visualises the time-dependent frequency spectrum of surface height measurements taken at a single point as the ship travels by.
Binns, Jonathan R.   +4 more
core   +1 more source

Effect of Hull Forms on Ship Motions and Optimization of Hull Forms for Seakeeping Performance

open access: yesJournal of the Society of Naval Architects of Japan, 1989
It is of importance to design a ship which has a good seakeeping performance in her sea-lane. It is, however, hard to say that an optimization of the hull form for seakeeping performance has been sufficiently carried out from the seakeeping point of view at the initial design stage of a merchant ship so far, because it has been difficult to make clear ...
openaire   +2 more sources

A U-net based reconstruction of high-fidelity simulation results for flow around a ship hull based on low-fidelity inviscid flow simulation

open access: yesInternational Journal of Naval Architecture and Ocean Engineering
In this study, neural networks are trained to transform inviscid simulation data for flow around a ship hull into data representative of viscous flow simulations.
Dayeon Kim, Jeongbeom Seo, Inwon Lee
doaj   +1 more source

An investigation of AI-based 3D model generators for ship hull design at the conceptual design stage

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveCurrent ship hull design practices are still largely dependent on designers' expertise, parent ship data, and external commercial CAD software, which results in extended design cycles and restricted innovation capacity.
Yongyu HUANG   +9 more
doaj   +1 more source

The effect of lift on the wave-making resistance of multi-hull craft [PDF]

open access: yes, 2007
A potential based panel method is presented to estimate the wave-making characteristics of multi-hull craft. In order to simulate the lifting potential flow around the sub-hulls, the method adopts mixed source/doublet distributions on the sub-hulls and ...
Sayer, P.G., Vassalos, D., Xie, N.
core   +1 more source

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