A Wave Energy Converter Design Load Case Study
This article presents an example by which design loads for a wave energy converter (WEC) might be estimated through the various stages of the WEC design process. Unlike previous studies, this study considers structural loads, for which, an accurate assessment is crucial to the optimization and survi...
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Published in | Journal of marine science and engineering Vol. 7; no. 8; p. 250 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
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01.08.2019
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Abstract | This article presents an example by which design loads for a wave energy converter (WEC) might be estimated through the various stages of the WEC design process. Unlike previous studies, this study considers structural loads, for which, an accurate assessment is crucial to the optimization and survival of a WEC. Three levels of computational fidelity are considered. The first set of design load approximations are made using a potential flow frequency-domain boundary-element method with generalized body modes. The second set of design load approximations are made using a modified version of the linear-based time-domain code WEC-Sim. The final set of design load simulations are realized using computational fluid dynamics coupled with finite element analysis to evaluate the WEC’s loads in response to both regular and focused waves. This study demonstrates an efficient framework for evaluating loads through each of the design stages. In comparison with experimental and high-fidelity simulation results, the linear-based methods can roughly approximate the design loads and the sea states at which they occur. The high-fidelity simulations for regular wave responses correspond well with experimental data and appear to provide reliable design load data. The high-fidelity simulations of focused waves, however, result in highly nonlinear interactions that are not predicted by the linear-based most-likely extreme response design load method. |
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AbstractList | This article presents an example by which design loads for a wave energy converter (WEC) might be estimated through the various stages of the WEC design process. Unlike previous studies, this study considers structural loads, for which, an accurate assessment is crucial to the optimization and survival of a WEC. Three levels of computational fidelity are considered. The first set of design load approximations are made using a potential flow frequency-domain boundary-element method with generalized body modes. The second set of design load approximations are made using a modified version of the linear-based time-domain code WEC-Sim. The final set of design load simulations are realized using computational fluid dynamics coupled with finite element analysis to evaluate the WEC's loads in response to both regular and focused waves. This study demonstrates an efficient framework for evaluating loads through each of the design stages. In comparison with experimental and high-fidelity simulation results, the linear-based methods can roughly approximate the design loads and the sea states at which they occur. The high-fidelity simulations for regular wave responses correspond well with experimental data and appear to provide reliable design load data. The high-fidelity simulations of focused waves, however, result in highly nonlinear interactions that are not predicted by the linear-based most-likely extreme response design load method. |
Author | van Rij, Jennifer Yu, Yi-Hsiang Coe, Ryan G. Guo, Yi |
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BackLink | https://www.osti.gov/biblio/1546805$$D View this record in Osti.gov |
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CitedBy_id | crossref_primary_10_3389_fenrg_2022_1069108 crossref_primary_10_1016_j_oceaneng_2022_113320 crossref_primary_10_1016_j_apenergy_2022_118629 crossref_primary_10_1016_j_apor_2024_104031 crossref_primary_10_3390_jmse9030350 crossref_primary_10_1016_j_oceaneng_2023_116400 crossref_primary_10_3390_en15113993 crossref_primary_10_1016_j_renene_2021_12_120 crossref_primary_10_1016_j_rser_2020_110593 crossref_primary_10_1016_j_apor_2022_103305 crossref_primary_10_1016_j_renene_2024_120141 crossref_primary_10_1680_jencm_19_00039 crossref_primary_10_1016_j_ifacol_2020_12_1231 crossref_primary_10_3390_jmse8020093 crossref_primary_10_1016_j_energy_2023_126807 crossref_primary_10_3390_en14010026 crossref_primary_10_3390_en17040898 |
Cites_doi | 10.4043/7142-MS 10.1016/j.renene.2017.09.056 10.1016/j.renene.2017.03.003 10.1016/j.compfluid.2012.10.007 10.1016/0141-1187(94)90013-2 10.1115/OMAE2018-78178 10.1115/OMAE2017-62139 10.2172/1169792 10.3390/en11010004 10.1115/OMAE2019-96838 10.1007/s40722-019-00129-8 10.23919/OCEANS.2015.7401878 10.1115/OMAE2016-54751 10.1016/j.oceaneng.2015.12.018 |
ContentType | Journal Article |
Copyright | 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
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CorporateAuthor | National Renewable Energy Lab. (NREL), Golden, CO (United States) Sandia National Lab. (SNL-NM), Albuquerque, NM (United States) |
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SubjectTerms | Accuracy Approximation Boundary element method Case studies Computational fluid dynamics Computer applications Converters Design design loads Design modifications Energy Evaluation extreme conditions Finite element method Fluid dynamics fluid structure interaction Hydrodynamics Load Loads (forces) Methods Optimization Potential flow Probability Probability distribution Real time Regular waves Sea state Sea states Simulation Survival TIDAL AND WAVE POWER Wave energy wave energy converter Wave power |
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Title | A Wave Energy Converter Design Load Case Study |
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