Numerical analysis of ship motions for an offshore vessel

Pacuraru, Sandita; Pacuraru, Florin; Bekhit, Adham S.

doi:10.1063/5.0027329

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…This study is an attempt by the authors to investigate the seakeeping behaviour of an offshore Anchor Handling Tug Supply (AHTS) vessel during the operation conditions, where the ship speed is equal to zero and at multiple heading angles. Similar attempts by the author based on the BEM method was presented in [3], while a similar comparison between BEM and URANSE for the seakeeping performance of a tanker was reported in [4]. URANSE-based approach was conducted for the model scale ships of a tanker, and a surface combatant can be found in [5,6].…”

Section: Introductionmentioning

confidence: 67%

Numerical Simulation for the Motion Response of an Offshore Ahts Ship in Regular and Irregular Waves

Pacuraru¹,

Domnişoru²,

Bekhit³

2022

IJMMT

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This study aims at predicting the hydrodynamic response of an offshore AHTS vessel in regular and irregular waves. The study focuses on predicting the six degrees of freedom responses for ship in the operation condition when ship speed is equal to zero, at various heading angles (0, 45, 90, 135, 180, 225, 270, and 315˚) and for several wave frequencies (0.02~2.0 rad/s). The numerical simulation is carried out using the 3D diffraction/radiation Hydrostar software that is based on potential theory to predict the wave-body interactions. All the hydrostatics, loading and sailing aspects are initially estimated, and then introduced as an input in the simulation process corresponding to the ship speed and heading directions. For the irregular sea simulations, the ITTC spectrum is used to describe the wave for a generic case study in the Black Sea in order to make the study feasible for offshore applications in operational conditions. Further investigations are made using the ISIS_CFD viscous flow solver of the FINETM/Marine software (only for regular waves) to compare the obtained results. The results are presented for the ship response with a considered accuracy based on the previous validations performed by the authors for similar ships.

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Section: Introductionmentioning

confidence: 67%

Numerical Simulation for the Motion Response of an Offshore Ahts Ship in Regular and Irregular Waves

Pacuraru¹,

Domnişoru²,

Bekhit³

2022

IJMMT

Self Cite

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“…The flow is assumed to be (fairly perfect fluid) as described by Guevel (1982) [1]; now, the momentum equation is written as:…”

Section: Governing Equationsmentioning

confidence: 99%

“…This study proposes the use of the simplest model of heavy lift vessel, being in the form of an almost box-shaped barge as an initial study for a further investigation that will be carried out by the authors soon, following a series of investigations that were carried out for the offshore oriented ship types, such as the Anchor Handling Tug Supply (AHTS) and the Offshore Supply Vessel (OSV) [1,2].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation for predicting the respose of an offshore heavy lift barge in regular and irregular waves

Bekhit,

Pacuraru

2023

Ann.UDJG.ShipBuilding

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This study case concerns the prediction of the hydrodynamic response of an offshore heavy lift barge in the regular and irregular waves. The study focuses on predicting the six degrees of freedom responses for the barge in the operation condition when the ship speed is equal to zero, at various heading angles (0~180˚) and for several wave frequencies (0.02~2.0 rad/s). The numerical simulation is carried out using the 3D diffraction /radiation motion solver Hydrostar software that is based on potential theory to predict the wave-body interactions. All the hydrostatics, loading and sailing aspects are initially estimated, and then introduced as an input in the simulation process corresponding to the ship speed and heading directions. For the irregular sea simulations, the ITTC spectrum is used to describe the wave for a generic study case in the Black Sea to make the study feasible for offshore applications in operational conditions where the ship speed is equal to zero.

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Numerical analysis of ship motions for an offshore vessel

Cited by 2 publications

References 4 publications

Numerical Simulation for the Motion Response of an Offshore Ahts Ship in Regular and Irregular Waves

Numerical Simulation for the Motion Response of an Offshore Ahts Ship in Regular and Irregular Waves

Numerical simulation for predicting the respose of an offshore heavy lift barge in regular and irregular waves

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