Details
| Original language | English |
|---|---|
| Article number | 117874 |
| Journal | Ocean engineering |
| Volume | 305 |
| Early online date | 24 Apr 2024 |
| Publication status | E-pub ahead of print - 24 Apr 2024 |
Abstract
The early stages of wave farm design require many parametric studies, e.g., regarding geometrical optimization of the array layout. Hence, mid-fidelity numerical models are employed due to their computational efficiency. In this study, the accuracy of these models and the necessary quality of input data (e.g., from Boundary Element Method simulations) is investigated using different calibration approaches. A heaving point absorber array comprising 24 devices, which are connected using a rigid frame, is used as the example wave farm. Three different approaches of model calibration are compared: (i) a low-effort approach without any calibration of the input data; (ii) an approach with medium-effort calibration based on experimental data of a single point absorber; and (iii) an approach with high-effort calibration based on experimental data of a whole wave farm. After a comparison with experimental data, the wave farm's power output using the three approaches is calculated and the accuracy as well as the implications for further design stages are discussed. The mid-fidelity hydrodynamic model can reproduce the mechanical interactions in the wave farm accurately, while the medium effort calibration shows high applicability due to the strong influence of the single point absorber calibration on the wave farm's power output.
Keywords
- BEM, Experimental modeling, Numerical modeling, Point absorber array, Wave energy, WEC-Sim
ASJC Scopus subject areas
- Engineering(all)
- Ocean Engineering
- Environmental Science(all)
- Environmental Engineering
Sustainable Development Goals
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In: Ocean engineering, Vol. 305, 117874, 01.08.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Mechanically coupled wave farms
T2 - On the accuracy of a mid-fidelity hydrodynamic model under consideration of varying calibration approaches
AU - Meyer, Jannik
AU - Windt, Christian
AU - Hildebrandt, Arndt
AU - Schlurmann, Torsten
N1 - This work has been supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – SFB1463 – 434502799.
PY - 2024/4/24
Y1 - 2024/4/24
N2 - The early stages of wave farm design require many parametric studies, e.g., regarding geometrical optimization of the array layout. Hence, mid-fidelity numerical models are employed due to their computational efficiency. In this study, the accuracy of these models and the necessary quality of input data (e.g., from Boundary Element Method simulations) is investigated using different calibration approaches. A heaving point absorber array comprising 24 devices, which are connected using a rigid frame, is used as the example wave farm. Three different approaches of model calibration are compared: (i) a low-effort approach without any calibration of the input data; (ii) an approach with medium-effort calibration based on experimental data of a single point absorber; and (iii) an approach with high-effort calibration based on experimental data of a whole wave farm. After a comparison with experimental data, the wave farm's power output using the three approaches is calculated and the accuracy as well as the implications for further design stages are discussed. The mid-fidelity hydrodynamic model can reproduce the mechanical interactions in the wave farm accurately, while the medium effort calibration shows high applicability due to the strong influence of the single point absorber calibration on the wave farm's power output.
AB - The early stages of wave farm design require many parametric studies, e.g., regarding geometrical optimization of the array layout. Hence, mid-fidelity numerical models are employed due to their computational efficiency. In this study, the accuracy of these models and the necessary quality of input data (e.g., from Boundary Element Method simulations) is investigated using different calibration approaches. A heaving point absorber array comprising 24 devices, which are connected using a rigid frame, is used as the example wave farm. Three different approaches of model calibration are compared: (i) a low-effort approach without any calibration of the input data; (ii) an approach with medium-effort calibration based on experimental data of a single point absorber; and (iii) an approach with high-effort calibration based on experimental data of a whole wave farm. After a comparison with experimental data, the wave farm's power output using the three approaches is calculated and the accuracy as well as the implications for further design stages are discussed. The mid-fidelity hydrodynamic model can reproduce the mechanical interactions in the wave farm accurately, while the medium effort calibration shows high applicability due to the strong influence of the single point absorber calibration on the wave farm's power output.
KW - BEM
KW - Experimental modeling
KW - Numerical modeling
KW - Point absorber array
KW - Wave energy
KW - WEC-Sim
UR - http://www.scopus.com/inward/record.url?scp=85190975557&partnerID=8YFLogxK
U2 - 10.1016/j.oceaneng.2024.117874
DO - 10.1016/j.oceaneng.2024.117874
M3 - Article
VL - 305
JO - Ocean engineering
JF - Ocean engineering
SN - 0029-8018
M1 - 117874
ER -