Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves
Typical results obtained by a newly developed, nonlinear time domain hybrid method for simulating large amplitude motions of ships advancing with constant forward speed in waves are presented. The method is hybrid in the way of combining a time-domain transient Green function method and a Rankine so...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2011-03-01
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| Series: | International Journal of Naval Architecture and Ocean Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2092678216302072 |
| _version_ | 1818156797080371200 |
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| author | Shukui Liu Apostolos D. Papanikolaou |
| author_facet | Shukui Liu Apostolos D. Papanikolaou |
| author_sort | Shukui Liu |
| collection | DOAJ |
| description | Typical results obtained by a newly developed, nonlinear time domain hybrid method for simulating large amplitude motions of ships advancing with constant forward speed in waves are presented. The method is hybrid in the way of combining a time-domain transient Green function method and a Rankine source method. The present approach employs a simple double integration algorithm with respect to time to simulate the free-surface boundary condition. During the simulation, the diffraction and radiation forces are computed by pressure integration over the mean wetted surface, whereas the incident wave and hydrostatic restoring forces/moments are calculated on the instantaneously wetted surface of the hull. Typical numerical results of application of the method to the seakeeping performance of a standard containership, namely the ITTC S175, are herein presented. Comparisons have been made between the results from the present method, the frequency domain 3D panel method (NEWDRIFT) of NTUA-SDL and available experimental data and good agreement has been observed for all studied cases between the results of the present method and comparable other data. |
| first_indexed | 2024-12-11T15:04:00Z |
| format | Article |
| id | doaj.art-0993036bab53452aa26074796fc5366e |
| institution | Directory Open Access Journal |
| issn | 2092-6782 |
| language | English |
| last_indexed | 2024-12-11T15:04:00Z |
| publishDate | 2011-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Naval Architecture and Ocean Engineering |
| spelling | doaj.art-0993036bab53452aa26074796fc5366e2022-12-22T01:01:01ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822011-03-0131727910.2478/JNAOE-2013-0047Time-domain hybrid method for simulating large amplitude motions of ships advancing in wavesShukui LiuApostolos D. PapanikolaouTypical results obtained by a newly developed, nonlinear time domain hybrid method for simulating large amplitude motions of ships advancing with constant forward speed in waves are presented. The method is hybrid in the way of combining a time-domain transient Green function method and a Rankine source method. The present approach employs a simple double integration algorithm with respect to time to simulate the free-surface boundary condition. During the simulation, the diffraction and radiation forces are computed by pressure integration over the mean wetted surface, whereas the incident wave and hydrostatic restoring forces/moments are calculated on the instantaneously wetted surface of the hull. Typical numerical results of application of the method to the seakeeping performance of a standard containership, namely the ITTC S175, are herein presented. Comparisons have been made between the results from the present method, the frequency domain 3D panel method (NEWDRIFT) of NTUA-SDL and available experimental data and good agreement has been observed for all studied cases between the results of the present method and comparable other data.http://www.sciencedirect.com/science/article/pii/S2092678216302072Hybrid time domain methodNonlinear ship motionChimera gridFree surface simulation |
| spellingShingle | Shukui Liu Apostolos D. Papanikolaou Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves International Journal of Naval Architecture and Ocean Engineering Hybrid time domain method Nonlinear ship motion Chimera grid Free surface simulation |
| title | Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves |
| title_full | Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves |
| title_fullStr | Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves |
| title_full_unstemmed | Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves |
| title_short | Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves |
| title_sort | time domain hybrid method for simulating large amplitude motions of ships advancing in waves |
| topic | Hybrid time domain method Nonlinear ship motion Chimera grid Free surface simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2092678216302072 |
| work_keys_str_mv | AT shukuiliu timedomainhybridmethodforsimulatinglargeamplitudemotionsofshipsadvancinginwaves AT apostolosdpapanikolaou timedomainhybridmethodforsimulatinglargeamplitudemotionsofshipsadvancinginwaves |