A numerical investigation of irregular wave overtopping on a 2D fixed overtopping wave energy converter
Overtopping wave energy converters (OWECs) are designed to capture the energy from wave overtopping and transform it into clean and renewable electricity. The present paper numerically investigates irregular wave overtopping on a simplified 2-dimensional OWEC, including the mean overtopping discharg...
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Taylor & Francis Group
2025-12-01
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| Series: | Engineering Applications of Computational Fluid Mechanics |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/19942060.2024.2446658 |
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| author | Deping Cao Hanqi Zeng Jie He Hui Liang Zhengtong Yang Venkata Ramaya Ancha Hao Chen |
| author_facet | Deping Cao Hanqi Zeng Jie He Hui Liang Zhengtong Yang Venkata Ramaya Ancha Hao Chen |
| author_sort | Deping Cao |
| collection | DOAJ |
| description | Overtopping wave energy converters (OWECs) are designed to capture the energy from wave overtopping and transform it into clean and renewable electricity. The present paper numerically investigates irregular wave overtopping on a simplified 2-dimensional OWEC, including the mean overtopping discharge, the distribution of individual overtopping volume, the resultant power harnessing of the OWECs and the transmission coefficient. A numerical wave tank based on the computational fluid dynamic approach is set up using the open-source toolbox OpenFOAM. The model has been successfully validated by comparing the numerical results with the data from our experiments and those available in the literature. The numerical results indicate that the primary factors influencing wave overtopping and extracted power performance of the OWECs are the front slope [Formula: see text] (β denotes the front slope angle) and the non-dimensional freeboard [Formula: see text], with [Formula: see text] being the freeboard and [Formula: see text] being the significant wave height. An increase in [Formula: see text] and a decrease in [Formula: see text] lead to a higher overtopping discharge, which enhances the capture width and reduces the transmission coefficient. A Weibull distribution has been adopted to describe the exceedance probability of the individual overtopping volume. Using the proposed predictor, the exceedance probability under most conditions can be well predicted within [Formula: see text]. |
| format | Article |
| id | doaj-art-ffcfd1b8a3fe4152af86a7e457bdea0b |
| institution | Kabale University |
| issn | 1994-2060 1997-003X |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Engineering Applications of Computational Fluid Mechanics |
| spelling | doaj-art-ffcfd1b8a3fe4152af86a7e457bdea0b2024-12-30T11:51:53ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2025-12-0119110.1080/19942060.2024.2446658A numerical investigation of irregular wave overtopping on a 2D fixed overtopping wave energy converterDeping Cao0Hanqi Zeng1Jie He2Hui Liang3Zhengtong Yang4Venkata Ramaya Ancha5Hao Chen6Department of Hydraulic Engineering, Tongji University, Shanghai, People's Republic of ChinaDepartment of Hydraulic Engineering, Tongji University, Shanghai, People's Republic of ChinaDepartment of Hydraulic Engineering, Tongji University, Shanghai, People's Republic of ChinaTechnology Centre for Offshore and Marine, Singapore (TCOMS), SingaporeDepartment of Civil and Environmental Engineering, National University of Singapore, SingaporeJiT Center of Excellence – Linking Energy with Water and Agriculture, Jimma Institute of Technology, Jimma University, Jimma, EthiopiaFaculty of Science Agriculture and Engineering, Newcastle University, Newcastle Upon Tyne, UKOvertopping wave energy converters (OWECs) are designed to capture the energy from wave overtopping and transform it into clean and renewable electricity. The present paper numerically investigates irregular wave overtopping on a simplified 2-dimensional OWEC, including the mean overtopping discharge, the distribution of individual overtopping volume, the resultant power harnessing of the OWECs and the transmission coefficient. A numerical wave tank based on the computational fluid dynamic approach is set up using the open-source toolbox OpenFOAM. The model has been successfully validated by comparing the numerical results with the data from our experiments and those available in the literature. The numerical results indicate that the primary factors influencing wave overtopping and extracted power performance of the OWECs are the front slope [Formula: see text] (β denotes the front slope angle) and the non-dimensional freeboard [Formula: see text], with [Formula: see text] being the freeboard and [Formula: see text] being the significant wave height. An increase in [Formula: see text] and a decrease in [Formula: see text] lead to a higher overtopping discharge, which enhances the capture width and reduces the transmission coefficient. A Weibull distribution has been adopted to describe the exceedance probability of the individual overtopping volume. Using the proposed predictor, the exceedance probability under most conditions can be well predicted within [Formula: see text].https://www.tandfonline.com/doi/10.1080/19942060.2024.2446658Overtopping wave energy convertercomputational fluid dynamicsovertopping dischargeovertopping volume distribution |
| spellingShingle | Deping Cao Hanqi Zeng Jie He Hui Liang Zhengtong Yang Venkata Ramaya Ancha Hao Chen A numerical investigation of irregular wave overtopping on a 2D fixed overtopping wave energy converter Engineering Applications of Computational Fluid Mechanics Overtopping wave energy converter computational fluid dynamics overtopping discharge overtopping volume distribution |
| title | A numerical investigation of irregular wave overtopping on a 2D fixed overtopping wave energy converter |
| title_full | A numerical investigation of irregular wave overtopping on a 2D fixed overtopping wave energy converter |
| title_fullStr | A numerical investigation of irregular wave overtopping on a 2D fixed overtopping wave energy converter |
| title_full_unstemmed | A numerical investigation of irregular wave overtopping on a 2D fixed overtopping wave energy converter |
| title_short | A numerical investigation of irregular wave overtopping on a 2D fixed overtopping wave energy converter |
| title_sort | numerical investigation of irregular wave overtopping on a 2d fixed overtopping wave energy converter |
| topic | Overtopping wave energy converter computational fluid dynamics overtopping discharge overtopping volume distribution |
| url | https://www.tandfonline.com/doi/10.1080/19942060.2024.2446658 |
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