Motion Simulation of FPSO in Waves through Numerical Sensitivity Analysis
This paper presents a numerical sensitivity analysis for the simulation of the motion performance of an offshore structure in waves using computational fluid dynamics (CFD). Starting with 2D wave simulations with varying numerical parameters such as grid spacing and CFL value, proper numerical condi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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The Korean Society of Ocean Engineers
2018-06-01
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| Series: | 한국해양공학회지 |
| Subjects: | |
| Online Access: | https://doi.org/10.26748/KSOE.2018.6.32.3.166 |
| _version_ | 1818081574638321664 |
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| author | Je-in Kim Il-Ryong Park Sung-Bu Suh Yong-Duck Kang Sa-Young Hong Bo-Woo Nam |
| author_facet | Je-in Kim Il-Ryong Park Sung-Bu Suh Yong-Duck Kang Sa-Young Hong Bo-Woo Nam |
| author_sort | Je-in Kim |
| collection | DOAJ |
| description | This paper presents a numerical sensitivity analysis for the simulation of the motion performance of an offshore structure in waves using computational fluid dynamics (CFD). Starting with 2D wave simulations with varying numerical parameters such as grid spacing and CFL value, proper numerical conditions were found for accurate wave propagation that avoids numerical diffusion problems. These results were mapped on 2D error distributions of wave amplitude and wave length against the numbers of grids per wave length and per wave height under a given CFL condition. Finally, the 2D numerical sensitivity result was validated through CFD simulation of the motion of a FPSO in waves showing good accuracy in motion RAOs compared with existing potential flow solutions. |
| first_indexed | 2024-12-10T19:08:22Z |
| format | Article |
| id | doaj.art-d5a69fd12b6343f1bf2078776521d793 |
| institution | Directory Open Access Journal |
| issn | 1225-0767 2287-6715 |
| language | English |
| last_indexed | 2024-12-10T19:08:22Z |
| publishDate | 2018-06-01 |
| publisher | The Korean Society of Ocean Engineers |
| record_format | Article |
| series | 한국해양공학회지 |
| spelling | doaj.art-d5a69fd12b6343f1bf2078776521d7932022-12-22T01:36:50ZengThe Korean Society of Ocean Engineers한국해양공학회지1225-07672287-67152018-06-0132316617610.26748/KSOE.2018.6.32.3.166Motion Simulation of FPSO in Waves through Numerical Sensitivity AnalysisJe-in Kim0Il-Ryong Park1Sung-Bu Suh2Yong-Duck Kang3Sa-Young Hong4Bo-Woo Nam5Dong-Eui University, Busan, KoreaDong-Eui University, Busan, KoreaDong-Eui University, Busan, KoreaDong-Eui University, Busan, Korea Korea research Institute of Ship & Ocean Engineering, Daejeon, Korea Korea research Institute of Ship & Ocean Engineering, Daejeon, KoreaThis paper presents a numerical sensitivity analysis for the simulation of the motion performance of an offshore structure in waves using computational fluid dynamics (CFD). Starting with 2D wave simulations with varying numerical parameters such as grid spacing and CFL value, proper numerical conditions were found for accurate wave propagation that avoids numerical diffusion problems. These results were mapped on 2D error distributions of wave amplitude and wave length against the numbers of grids per wave length and per wave height under a given CFL condition. Finally, the 2D numerical sensitivity result was validated through CFD simulation of the motion of a FPSO in waves showing good accuracy in motion RAOs compared with existing potential flow solutions.https://doi.org/10.26748/KSOE.2018.6.32.3.166Wave propagationMotionCFDNumerical sensitivityError distribution |
| spellingShingle | Je-in Kim Il-Ryong Park Sung-Bu Suh Yong-Duck Kang Sa-Young Hong Bo-Woo Nam Motion Simulation of FPSO in Waves through Numerical Sensitivity Analysis 한국해양공학회지 Wave propagation Motion CFD Numerical sensitivity Error distribution |
| title | Motion Simulation of FPSO in Waves through Numerical Sensitivity Analysis |
| title_full | Motion Simulation of FPSO in Waves through Numerical Sensitivity Analysis |
| title_fullStr | Motion Simulation of FPSO in Waves through Numerical Sensitivity Analysis |
| title_full_unstemmed | Motion Simulation of FPSO in Waves through Numerical Sensitivity Analysis |
| title_short | Motion Simulation of FPSO in Waves through Numerical Sensitivity Analysis |
| title_sort | motion simulation of fpso in waves through numerical sensitivity analysis |
| topic | Wave propagation Motion CFD Numerical sensitivity Error distribution |
| url | https://doi.org/10.26748/KSOE.2018.6.32.3.166 |
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