Results 1 to 10 of about 663,862 (352)

Ship Motions and Wave Loads

open access: yesJournal of Marine Science and Engineering, 2023
Seagoing ships operate in ocean waves for the majority of their service lives [...]
Jialong Jiao, Tahsin Tezdogan
doaj   +4 more sources

URANS Calculation of Ship Heave and Pitch Motions in Marine Simulator Based on Overset Mesh

open access: yesJournal of Marine Science and Engineering, 2022
So as to improve the reliability and accuracy of marine simulators, it is essential to predict ship heave and pitch motions in regular waves. The motions of two ships, the international standard model KVLCC2 and the first training ship, “Yukun”, of ...
Ziping Wang   +4 more
doaj   +2 more sources

Increase of the Ship Fuel Consumption Due to Added Resistance in Waves [PDF]

open access: yesJournal of Sustainable Development of Energy, Water and Environment Systems, 2017
Added resistance in waves is the second-order steady force dependant on the ship motions. It significantly affects ship operability and cause speed loss. Therefore the required power and fuel consumption of a ship advancing in a seaway are increasing. In
Nastia Degiuli   +4 more
doaj   +5 more sources

RANS Computation of the Mean Forces and Moments, and Wave-Induced Six Degrees of Freedom Motions for a Ship Moving Obliquely in Regular Head and Beam Waves

open access: yesJournal of Marine Science and Engineering, 2021
Ship maneuvering performance in waves has attracted much attention in recent years. One of main research efforts for this problem has been devoted to the high-accuracy computation of hydrodynamic forces and moments, as well as wave-induced motions, for ...
Jianxi Yao   +4 more
doaj   +2 more sources

Numerical studies on non-linearity of added resistance and ship motions of KVLCC2 in short and long waves

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2019
In this study, numerical simulations for the prediction of added resistance for KVLCC2 with varying wave steepness are performed using a Computational Fluid Dynamics (CFD) method and a 3-D linear potential method, and then the non-linearities of added ...
Olgun Hizir   +5 more
doaj   +2 more sources

Numerical study of ship motions and added resistance in regular incident waves of KVLCC2 model

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2017
In this study, the numerical investigation of ship motions and added resistance at constant forward velocity of KVLCC2 model is presented. Finite volume CFD code is used to calculate three dimensional, incompressible, unsteady RANS equations.
Yavuz Hakan Ozdemir, Baris Barlas
doaj   +2 more sources

Evaluation of the added resistance and ship motions coupled with sloshing using potential flow theory [PDF]

open access: yes, 2016
Ship added resistance is a steady force of the second order which depends on the ship motions and wave diffraction in short waves. To predict the impact of liquid motions inside the ship hull, a flooded tank in the midship area is generated and the ship ...
Degiuli, Nastia   +2 more
core   +3 more sources

Recurrent-type Neural Networks for Real-time Short-term Prediction of Ship Motions in High Sea State [PDF]

open access: yesThe 9th Conference on Computational Methods in Marine Engineering (Marine 2021), 2021
The prediction capability of recurrent-type neural networks is investigated for real-time short-term prediction (nowcasting) of ship motions in high sea state.
D. D’Agostino   +3 more
semanticscholar   +1 more source

CFD investigation into seakeeping performance of a training ship [PDF]

open access: yes, 2021
The numerous ship accidents at sea have usually resulted in tremendous loss and casualties. To prevent such disastrous accidents, a comprehensive investigation into reliable prediction of seakeeping performance of a ship is necessarily required.
Adam, Nur Amira   +5 more
core   +1 more source

A deep learning method for the prediction of 6-DoF ship motions in real conditions

open access: yesProceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 2023
This paper presents a deep learning method for the prediction of ship motions in 6 Degrees of Freedom (DoF). Big data streams of Automatic Identification System (AIS), now-cast, and bathymetry records are used to extract motion trajectories and idealise ...
Mingyang Zhang   +3 more
semanticscholar   +1 more source

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