On Nonlinear Simulation Methods and Tools for Evaluating the Performance of Ships and Offshore Structures in Waves
This paper describes the development of alternative time domain numerical simulation methods for predicting large amplitude motions of ships and floating structures in response to incoming waves in the frame of potential theory. The developed alternative set of time domain methods simulate the hydro...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2012/563182 |
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| _version_ | 1832552633657720832 |
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| author | Shukui Liu Apostolos Papanikolaou |
| author_facet | Shukui Liu Apostolos Papanikolaou |
| author_sort | Shukui Liu |
| collection | DOAJ |
| description | This paper describes the development of alternative time domain numerical simulation methods
for predicting large amplitude motions of ships and floating structures in response to incoming waves in the frame of potential theory. The developed alternative set of time domain methods simulate the hydrodynamic forces acting on ships advancing in waves with constant speed. For motions’ simulation, the diffraction forces and radiation forces are calculated up to the mean wetted surface, while the Froude-Krylov forces and hydrostatic restoring forces are calculated up to the undisturbed incident wave surface in case of large incident wave amplitude. This enables the study of the above waterline hull form effect. Characteristic case studies on simulating the hydrodynamic forces and motions of standard type of ships have been conducted for validation purpose. Good agreement with other numerical codes and experimental data has been observed. Furthermore, the added resistance of ships in waves can be calculated by the presented methods. This capability supports the increased demand of this type of tools for the proper selection of engine/propulsion systems accounting for ship’s performance in realistic sea conditions, or when optimizing ship’s sailing route for minimum fuel consumption and toxic gas emissions. |
| format | Article |
| id | doaj-art-4673a0abaf584187a65890e3368e264a |
| institution | Kabale University |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-4673a0abaf584187a65890e3368e264a2025-02-03T05:58:11ZengWileyJournal of Applied Mathematics1110-757X1687-00422012-01-01201210.1155/2012/563182563182On Nonlinear Simulation Methods and Tools for Evaluating the Performance of Ships and Offshore Structures in WavesShukui Liu0Apostolos Papanikolaou1Ship Design Laboratory, National Technical University of Athens, 15773 Athens, GreeceShip Design Laboratory, National Technical University of Athens, 15773 Athens, GreeceThis paper describes the development of alternative time domain numerical simulation methods for predicting large amplitude motions of ships and floating structures in response to incoming waves in the frame of potential theory. The developed alternative set of time domain methods simulate the hydrodynamic forces acting on ships advancing in waves with constant speed. For motions’ simulation, the diffraction forces and radiation forces are calculated up to the mean wetted surface, while the Froude-Krylov forces and hydrostatic restoring forces are calculated up to the undisturbed incident wave surface in case of large incident wave amplitude. This enables the study of the above waterline hull form effect. Characteristic case studies on simulating the hydrodynamic forces and motions of standard type of ships have been conducted for validation purpose. Good agreement with other numerical codes and experimental data has been observed. Furthermore, the added resistance of ships in waves can be calculated by the presented methods. This capability supports the increased demand of this type of tools for the proper selection of engine/propulsion systems accounting for ship’s performance in realistic sea conditions, or when optimizing ship’s sailing route for minimum fuel consumption and toxic gas emissions.http://dx.doi.org/10.1155/2012/563182 |
| spellingShingle | Shukui Liu Apostolos Papanikolaou On Nonlinear Simulation Methods and Tools for Evaluating the Performance of Ships and Offshore Structures in Waves Journal of Applied Mathematics |
| title | On Nonlinear Simulation Methods and Tools for Evaluating the
Performance of Ships and Offshore Structures in Waves |
| title_full | On Nonlinear Simulation Methods and Tools for Evaluating the
Performance of Ships and Offshore Structures in Waves |
| title_fullStr | On Nonlinear Simulation Methods and Tools for Evaluating the
Performance of Ships and Offshore Structures in Waves |
| title_full_unstemmed | On Nonlinear Simulation Methods and Tools for Evaluating the
Performance of Ships and Offshore Structures in Waves |
| title_short | On Nonlinear Simulation Methods and Tools for Evaluating the
Performance of Ships and Offshore Structures in Waves |
| title_sort | on nonlinear simulation methods and tools for evaluating the performance of ships and offshore structures in waves |
| url | http://dx.doi.org/10.1155/2012/563182 |
| work_keys_str_mv | AT shukuiliu onnonlinearsimulationmethodsandtoolsforevaluatingtheperformanceofshipsandoffshorestructuresinwaves AT apostolospapanikolaou onnonlinearsimulationmethodsandtoolsforevaluatingtheperformanceofshipsandoffshorestructuresinwaves |