Results 121 to 130 of about 17,073 (163)

Added Powering Measurements of KCS Maneuvering in Regular Variable Heading Waves

SNAME 30th American Towing Tank Conference, 2017
To know more detail of added powering and propeller load fluctuations in regular waves during free-maneuvering, free-running tests of KRISO Container Ship model (KCS) are conducted. KCS 2.7 m model that was used in the previous surge-free added resistance experiments is modified and new free-running system with compact dynamometer is installed.
Yugo Sanada, Shogo Ito, Yasuyuki Toda, Frederick Stern   +3 more
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EFD and CFD for KCS heaving and pitching in regular head waves

Journal of Marine Science and Technology, 2013
The KCS container ship was investigated in calm water and regular head seas by means of EFD and CFD. The experimental study was conducted in FORCE Technology’s towing tank in Denmark, and the CFD study was conducted using the URANS codes CFDSHIP-IOWA and Star-CCM+ plus the potential theory code AEGIR.
Claus D. Simonsen, Janne F. Otzen, Soizic Joncquez, Frederick Stern   +3 more
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Numerical Simulation for Predicting Ship Resistance and Vertical Motions in Regular Head Waves

Volume 2: CFD and FSI, 2019
Abstract The present study is concerned with predicting the resistance and vertical motions of the surface combatant DTMB5512 ship model in regular head waves. A series of numerical simulations are performed for various wave lengths, heights and different ship speeds. Computations are performed by making use of the ISIS-CFD solver of the
Adham S. Bekhit, Adrian Lungu
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Numerical prediction of added resistance and vertical ship motions in regular head waves

Journal of Marine Science and Application, 2012
The numerical prediction of added resistance and vertical ship motions of one ITTC (International Towing Tank Conference) S-175 containership in regular head waves by our own in-house unsteady RANS solver naoe-FOAM-SJTU is presented in this paper. The development of the solver naoe-FOAM-SJTU is based on the open source CFD tool, OpenFOAM.
Haixuan Ye, Zhirong Shen, Decheng Wan
openaire   +1 more source

On the nonlinear moonpool responses in a drillship under regular heading waves

Physics of Fluids
In this study, the nonlinear and viscous damping effects on the free-surface elevations of the recess-type moonpool inside a drillship are investigated. Based on a three-dimensional nonlinear potential flow (NPF3D) model, the nonlinear moonpool responses excited by regular heading waves are simulated in the time domain.
Bei Chu, Xinshu Zhang, Guangming Zhang, Junxuan Chen   +3 more
openaire   +1 more source

RANS Analysis of the Motions and Added Resistance for KVLCC2 in Head Regular Waves

Applied Ocean Research, 2020
Abstract The motions and added resistance for KVLCC2 models in head regular waves are predicted by using the expanded RANS solver on OpenFOAM platform. The computed added resistance consists of not only the added resistance due to pure hydrodynamic effect, that is obtained by integrating pressure and viscous stress over hull surface, but also the ...
Jianxi Yao, Yan Su, Xuemin Song, Zuyuan Liu, Xide Cheng, Chengsheng Zhan   +5 more
openaire   +1 more source

Comparative Frequency Domain Seakeeping Analysis of a Fast Monohull in Regular Head Waves

21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, 2002
Two sets of seakeeping computations and comparative model teats were performed for a fast monohull in regular waves. The first set of computations used an existing three-dimensional frequency domain panel code that formulates the potential flow problem by means of the zero-speed Green function.
Thomas E. Schellin, Christian Beiersdorf, Xiao-Bo Chen, Adolfo Maron   +3 more
openaire   +1 more source

Effect of ship motions on added resistance in regular head waves of KVLCC2

Ocean Engineering, 2017
Abstract This paper employs an experimental method to investigate the impact of ship motions on added resistance for KVLCC2 advancing forward in 14 regular head waves. The model tests have been conducted at Pusan National University's towing tank. The model is free or fixed to surge. The wave length ranges from 0.3LPP to 1.9LPP.
Jin-Won Yu, Cheol-Min Lee, Jung-Eun Choi, Inwon Lee   +3 more
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Numerical investigation of the seakeeping behavior of a catamaran advancing in regular head waves

Ocean Engineering, 2011
Abstract A numerical study was undertaken in order to assess the capability of an unsteady RANS code to predict the seakeeping characteristics of a high-speed multi-hull vessel in high sea states. Numerical analysis includes evaluation of ship motions, effects of wave steepness on ship response, catamaran natural frequency and added resistance in ...
CASTIGLIONE T, STERN F, BOVA, Sergio, KANDASAMY M.   +3 more
openaire   +2 more sources

Solution of Non-linear Ship Motions in Regular Head Waves

1999
The non-linear effects of large motion, caused by added mass, damping coefficients, exciting force and restoring force change with time, cannot be neglected. When an incoming wave approaches the body, an instantaneous draft is computed, and the draft respective coefficients are interpolated using linear regression method.
openaire   +1 more source