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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 趙修武 | zh_TW |
| dc.contributor.advisor | Shiu-Wu Chau | en |
| dc.contributor.author | 白博允 | zh_TW |
| dc.contributor.author | Po-Yun Pai | en |
| dc.date.accessioned | 2026-08-20T17:01:09Z | - |
| dc.date.available | 2026-08-21 | - |
| dc.date.copyright | 2026-08-20 | - |
| dc.date.issued | 2026 | - |
| dc.date.submitted | 2026-08-17 11:13:30 | - |
| dc.identifier.citation | [1]Bureau of Energy, Ministry of Economic Affairs, Taiwan. Energy Statistical Annual Reports. Taipei, 2023.
[2]K.S. Cheng, C.Y. Ho and J.H. Teng, “Wind characteristics in the Taiwan Strait: A case study of the first offshore wind farm in Taiwan,” Energies, vol. 13, no. 24, 2020. [3]Executive Yuan, Taiwan. Taiwan's Pathway to Net-Zero Emissions in 2050. Taipei, 2022. [4]A. Robertson, J. Jonkman, M. Masciola, H. Song, A. Goupee, A. Coulling and C. Luan. "Definition of the Semisubmersible Floating System for Phase II of OC4," NREL/TP-5000-60601, National Renewable Energy Laboratory, Golden, CO, USA, Sep. 2014. [5]A. Robertson, J. Jonkman, F. Vorpahl, W. Popko, J. Qvist, L. Froyd, X. Chen, J. Azcona, E. Uzungoglu, C. Guedes Soares, C. Luan, H. Yutong, F. Pengcheng, A. Yde, T. Larsen, J. Nichols, R. Buils, L. Lei, and T. Anders Nygard, "Offshore code comparison collaboration, continuation within IEA Wind Task 30: Phase II results regarding a floating semisubmersible wind system," in Proc. ASME 33rd Int. Conf. Ocean, Offshore and Arctic Engineering (OMAE2014), San Francisco, CA, USA, Jun. 8–13, 2014, Art. no. OMAE2014-24040 [6]Global Wind Energy Council and Ocean Renewable Energy Action Coalition, “Offshore wind technical potential in Taiwan,” Brussels, Belgium, Jun. 2021. [7]J. Wang, F. Huang, R. Kubitschek, and J. McCatherin, "The power and potential of floating wind energy," Euro view, European Chamber of Commerce Taiwan, Taipei, Taiwan, Mar. 2023. [8]IEC 61400-1:2019. Wind Energy Generation Systems – Part 1: Design Requirements. IEC, Geneva, 2019. [9]DNV GL AS, "DNVGL-ST-0119: Floating wind turbine structures," Edition July 2018, DNV GL AS, 2018. [10]K. Ravindra Babu, R. Datta, and A. Bhattacharyya, "Numerical investigation of heave and pitch motion effects on green water loading for a floating body," J. Marine Sci. Appl., vol. 18, no. 4, pp. 457–471, Dec. 2019, doi: 10.1007/s11804-019-00118-1. [11]G. Ersdal and A. Kvitrud, "Green Water on Norwegian Production Ships," in Proc. 10th International Offshore and Polar Engineering Conference (ISOPE), Seattle, USA, May 28–June 2, 2000. [12]B. Buchner, Green Water on Ship-type Offshore Structures, Ph.D. thesis, Delft University of Technology, Delft, The Netherlands, 2002. [13]M. Greco, O. M. Faltinsen, and M. Landrini, "Shipping of water on a two-dimensional structure," J. Fluid Mech., vol. 525, pp. 309–332, Feb. 2005, doi: 10.1017/S0022112004002691. [14]O. M. Faltinsen, Sea Loads on Ships and Offshore Structures, Cambridge University Press, Cambridge, UK, 1990. [15]G. N. Lee, K. H. Jung, S. Y. Shin, H. J. Park, S. Malenica, Y. S. Chung, and S. B. Suh, "Experimental study of green water on rectangular structure with varying flare angle," Ocean Eng., vol. 243, Art. no. 110252, Jan. 2022, doi: 10.1016/j.oceaneng.2021.110252. [16]N. AlMashan, S. Neelamani, and D. Al-Houti, "Experimental investigations on wave impact pressures under the deck and global wave forces and moments on offshore jacket platform for partial and full green water conditions," Ocean Eng., vol. 234, Art. no. 109226, Aug. 2021, doi: 10.1016/j.oceaneng.2021.109226. [17]G. A. Esteban, X. Ezkurra, I. Bidaguren, I. Albaina, and U. Izquierdo, "Computational Study of Overtopping Phenomenon over Cylindrical Structures Including Mitigation Structures," Journal of Marine Science and Engineering, vol. 12, no. 8, Art. no. 1441, 2024. DOI: 10.3390/jmse12081441 [18]C. W. Hirt and B. D. Nichols, "Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries," Journal of Computational Physics, vol. 39, pp. 201–225, 1981. [19]K. B. Nielsen and S. Mayer, "Numerical prediction of green water incidents," Ocean Engineering, vol. 31, pp. 363–399, 2004. [20]J. Yamasaki, H. Miyata, and A. Kanai, "Finite-difference simulation of green water impact on fixed and moving bodies," Journal of Marine Science and Technology, vol. 10, pp. 1–10, 2005. DOI: 10.1007/s00773-005-0194-1 [21]D. F. C. Silva, P. T. T. Esperança, and A. L. G. A. Coutinho, "Green water loads on FPSOs exposed to beam and quartering seas, Part II: CFD simulations," Ocean Engineering, vol. 140, pp. 434–452, 2017. [22]Z. Z. Hu, D. Greaves, and A. Raby, "Numerical wave tank study of extreme waves and wave-structure interaction using OpenFOAM," Ocean Engineering, vol. 126, pp. 329–342, 2016. [23]M. Gao, S. Draper, G. McCauley, L. Chen, X. Zhang, H. Wolgamot, P. H. Taylor, and L. Cheng, "Modeling Green Water Load on a Deck Mounted Circular Cylinder," Journal of Offshore Mechanics and Arctic Engineering, vol. 146, no. 3, Art. no. 031203, 2024. DOI: 10.1115/1.4063807 [24]M. Gao, S. Draper, H. A. Wolgamot, L. Chen, P. H. Taylor, and L. Cheng, "Green water loads on prismatic obstacles," Journal of Fluid Mechanics, vol. 1004, Art. no. A8, 2025. DOI: 10.1017/jfm.2024.1217 [25]X. Zhao, Z. Ye, and Y. Fu, "Green water loading on a floating structure with degree of freedom effects," Journal of Marine Science and Technology, vol. 19, pp. 302–313, 2014. DOI: 10.1007/s00773-013-0249-7 [26]D. Roddier, C. Cermelli, A. Aubault, and A. Weinstein, "WindFloat: A floating foundation for offshore wind turbines," Journal of Renewable and Sustainable Energy, vol. 2, Art. no. 033104, 2010. DOI: 10.1063/1.3435339 [27]M. B. Waris and T. Ishihara, "Dynamic response analysis of floating offshore wind turbine with different types of heave plates and mooring systems by using a fully nonlinear model," Coupled Systems Mechanics, vol. 1, no. 3, pp. 247–268, 2012. [28]Simcenter STAR-CCM+ User Guide, ver.2410, Siemens, Berlin, Germany,2024 [29]H. Jasak, "Error analysis and estimation for the finite volume method with applications to fluid flows," Ph.D. dissertation, Imperial College London, London, U.K., 1996. [30]H. Chen and M. Hall, "CFD simulation of floating body motion with mooring dynamics: Coupling MoorDyn with OpenFOAM," Applied Ocean Research, vol. 124, Art. no. 103210, 2022. [31]S. Aliyar, G. Ducrozet, B. Bouscasse, F. Bonnefoy, V. Sriram, and P. Ferrant, "Numerical coupling strategy using HOS-OpenFOAM-MoorDyn for OC3 Hywind SPAR type platform," Ocean Eng., vol. 263, Art. no. 112206, Nov. 2022, doi: 10.1016/j.oceaneng.2022.112206. [32]J. Jonkman, S. Butterfield, W. Musial, and G. Scott, "Definition of a 5-MW reference wind turbine for offshore system development," NREL/TP-500-38060, National Renewable Energy Laboratory, Golden, CO, USA, 2009. [33]National Taiwan University, "TaidaFloat: Development of a semi-submersible floating platform for offshore wind energy," Technical Report, Taipei, Taiwan, 2018. [34]K. G. Vijay, D. Karmakar, E. Uzunoglu, and C. Guedes Soares, "Performance of barge-type floaters for floating wind turbine," in Proc. 2nd Int. Conf. Renewable Energies Offshore (RENEW 2016), Lisbon, Portugal, Oct. 24–26, 2016. [35]C. A. Chen, "Specification of mooring & anchor system," ver. 1.1, Energy Research Center, National Taiwan University, Taipei, Taiwan, Jan. 2023. [36]DNV, DNV-RP-0286: Coupled Analysis of Floating Wind Turbines, ed. 2019-05, amended 2021-10. DNV, 2021. [37]J. Galván et al., "Design Basis," COREWIND Project (H2020 Grant No. 815083), Deliverable D2.1, Jan. 2020. [38]D. C. Wilcox, Turbulence Modeling for CFD. La Cañada, CA, USA: DCW Industries, 1998. [39]S. B. Pope, Turbulent Flows. Cambridge, U.K.: Cambridge Univ. Press, 2000. [40]J. H. Ferziger and M. Perić, Computational Methods for Fluid Dynamics. Berlin, Germany: Springer, 2002. [41]F. R. Menter, "Two-equation eddy-viscosity turbulence models for engineering applications," AIAA Journal, vol. 32, no. 8,1994. [42]F. R. Menter, M. Kuntz, and R. Langtry, "Ten years of industrial experience with the SST turbulence model," in Proc. 4th Int. Symp. Turbulence, Heat and Mass Transfer, Antalya, Turkey, 2003, pp. 625–632. [43]F. Robaux and M. Benoit, "Assessment of one-way coupling methods from a potential to a viscous flow solver based on domain- and functional-decomposition for fixed submerged bodies in nonlinear waves," European Journal of Mechanics – B/Fluids, vol. 95, pp. 315–334, 2022. [44]O. Ubbink and R. I. Issa, "A method for capturing sharp fluid interfaces on arbitrary meshes," Journal of Computational Physics, vol. 153, no. 1, pp. 26–50, 1999. [45]J. D. Fenton, "A fifth-order Stokes theory for steady waves," Journal of Waterway, Port, Coastal, and Ocean Engineering, vol. 111, no. 2, pp. 216–234, 1985. [46]O. Dell'Edera, F. Niosi, P. Casalone, M. Bonfanti, B. Paduano, and G. Mattiazzo, "Understanding wave energy converters dynamics: High-fidelity modeling and validation of a moored floating body," Appl. Energy, vol. 376, Art. no. 124202, Aug. 2024, doi: 10.1016/j.apenergy.2024.124202. [47]M. Hall and, J. L. Cercos-Pita, "C API," MoorDyn Documentation, ver. 2.3.1, Floating Array Design, 2024. [48]S. Chakrabarti, Handbook of Offshore Engineering, vol. 1. Amsterdam, The Netherlands: Elsevier, 2005. [49]M. Folley, "The wave energy resource," in Handbook of Ocean Wave Energy, A. Pecher and J. Kofoed, Eds. Cham, Switzerland: Springer, 2017, vol. 7. [50]I. Gatin, N. Vladimir, Š. Malenica, and H. Jasak, "Green sea loads in irregular waves with finite volume method," Ocean Eng., vol. 171, pp. 554–564, Jan. 2019, doi: 10.1016/j.oceaneng.2018.10.061. [51]ITTC, "Seakeeping Experiments," ITTC Recommended Procedures and Guidelines, 7.5-02-07-02.1, 2008. [52]ITTC, "Analysis Procedure for Model Tests in Regular Waves," ITTC Recommended Procedures and Guidelines, 7.5-02-07-03.2, 2002. | - |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/104003 | - |
| dc.description.abstract | 本研究採用高解析度計算流體力學模型，同時耦合集中質量式繫泊模型 MoorDyn，探討部署於 70 m 水深，承受臺灣海峽極端海況之 5 MW 浮式離岸風 力機的上浪負荷、運動響應及上浪響應機制。本研究採用的五十年回歸週期海氣象 條件係根據新竹浮標的量測資料，對應風速為 57 m/s、示性波高為 12.7 m、波浪 週期為 11.8s。本研究求解非定常雷諾平均納維–斯托克斯方程式以及SSTk-ω 紊 流模型，並使用流體體積法捕捉自由液面變化與上浪衝擊現象，同時採用重疊網格 技術解析浮式風機之六個自由度運動。流場求解器透過雙向耦合程序與繫泊模型 連結，於每一時間步交換平台運動狀態與繫泊回復力，以確保水動力載荷、平台運 動與繫泊響應在各求解器間具有一致性。本研究針對平台運動、速度、加速度及上 浪效應進行完整分析，並比較駁船式與半潛式平台於頂浪、側浪與順浪等不同波浪 入射方向下之動態響應行為。計算結果顯示，駁船式平台於順浪下之最大上浪力達 52.69MN，半潛式平台則於頂浪下達 29.93MN;此外，駁船式平台於側浪下之繫 泊張力最為嚴峻，達最大斷裂強度之 72%，顯示平台構型不僅主導上浪發生方向 與機制，亦顯著影響繫泊系統之受力表現。
關鍵字:上浪效應、極端海況、臺灣海峽、運動響應、回復、壓力負荷 | zh_TW |
| dc.description.abstract | This study employs a high-resolution computational fluid dynamics model coupled with the lumped-mass mooring model MoorDyn to investigate green water loads, motion responses, and the associated response mechanisms of a 5 MW floating offshore wind turbine deployed in 70 m water depth under an extreme condition in the Taiwan Strait. The employed 50-year return period metocean conditions are based on measurements from the Hsinchu buoy, corresponding to a wind speed of 57 m/s, a significant wave height of 12.7 m, and a wave period of 11.8 s. The unsteady Reynolds-averaged Navier– Stokes equations are solved along with the SST k–ω turbulence model, while the volume of fluid method is adopted to capture free-surface evolution and green water impact. Overset mesh techniques are employed to accurately resolve the six-degrees-of-freedom motions of the floating wind turbine. The flow solver is two-way coupled with MoorDyn at each time step, ensuring consistency among hydrodynamic loads, platform motions, and mooring responses. A comprehensive analysis of platform motions, velocities, accelerations, and green water effects is performed for barge and semi-submersible platforms under head sea, beam sea, and following sea conditions. Numerical results show that peak green water forces of 52.69 MN for the barge platform in following seas and 29.93 MN for the semi-submersible platform in head seas. For the barge platform, the mooring line tension under beam sea condition is the most severe, reaching 72% of the maximum breaking load, indicating that platform configuration not only governs the direction and mechanism of green water occurrence, but also significantly affects the load response of the mooring system.
Keywords: Green water, Extreme condition, Taiwan Strait, Motion response, Restoring, Impulse pressure | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2026-08-20T17:01:09Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2026-08-20T17:01:09Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | Content
Abstract I 摘要 II Content III Nomenclature V List of Figures IX List of Tables XIV 1 Introduction 1 1.1 Motivation 1 1.2 Literature Review 4 2 FOWT Design 7 2.1 Wind Turbine Design 7 2.2 Platform Design 10 2.3 Mooring System Design 13 2.4 Design Criteria 15 3 Numerical Methods 16 3.1 Governing Equation 17 3.2 Turbulence Model 19 3.3 Volume of Fluid Method 22 3.4 Computational Domain and Boundary Conditions 24 3.5 Mesh 30 3.6 Mooring Line Modeling 31 3.7 Two-way Coupling 33 3.8 Validation 36 4 Simulation Conditions 41 4.1 Metocean Conditions 41 4.2 Case Descriptions 43 5 Simulation Results 46 5.1 Motion Response 48 5.2 Green Water Effect 75 5.3 Velocities and Accelerations 97 5.4 Mooring Line Tension 117 5.5 Mechanism of Green Water Induced by Motions 129 6 Conclusions 155 References 158 | - |
| dc.language.iso | en | - |
| dc.subject | 上浪效應 | - |
| dc.subject | 極端海況 | - |
| dc.subject | 臺灣海峽 | - |
| dc.subject | 運動響應 | - |
| dc.subject | 回復 | - |
| dc.subject | 壓力負荷 | - |
| dc.subject | Green water | - |
| dc.subject | Extreme condition | - |
| dc.subject | Taiwan Strait | - |
| dc.subject | Motion response | - |
| dc.subject | Restoring | - |
| dc.subject | Impulse pressure | - |
| dc.title | 5 MW 半潛式浮式風機極端海況上浪效應數值模擬 | zh_TW |
| dc.title | Numerical Investigation of Green Water in Extreme Sea States for a 5 MW Semi-Submersible Floating Wind Turbine | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 114-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 江茂雄;許文陽;劉定朋;楊舜涵;楊瑞源 | zh_TW |
| dc.contributor.oralexamcommittee | Mao-Hsiung Chiang;Wen-Yang Hsu;Ding-Peng Liu;Shun-Han Yang;Ray-Yeng Yang | en |
| dc.subject.keyword | 上浪效應; 極端海況; 臺灣海峽; 運動響應; 回復; 壓力負荷 | zh_TW |
| dc.subject.keyword | Green water; Extreme condition; Taiwan Strait; Motion response; Restoring; Impulse pressure | en |
| dc.relation.page | 161 | - |
| dc.identifier.doi | 10.6342/NTU202603494 | - |
| dc.rights.note | 未授權 | - |
| dc.date.accepted | 2026-08-19 | - |
| dc.contributor.author-college | 工學院 | - |
| dc.contributor.author-dept | 工程科學及海洋工程學系 | - |
| dc.date.embargo-lift | N/A | - |
| 顯示於系所單位： | 工程科學及海洋工程學系 | |
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