Abstract
To make the swing-arm type wave energy converter (WEC) closer to engineering application，a coupling numerical model of PA-WEC and the float arm was established to investigate the hydrodynamic performance and power output by utilizing computational fluid dynamics (CFD) tool. The resistance of piston in the hydraulic power take-off (PTO) system was simulated by a constant resistance load. First，the grid and time-step convergence of the numerical wave tank were verified. Then，the performances of swing-arm type WEC in different drafts and different forms of PTO were investigated based on the overset mesh technology. Finally，the influence of various float-arm lengths on the power output was analyzed. Results show that when the draught is increased，the device can be operated with a shorter float arm，and the average power output of the swing-arm type WEC first increases and then decreases with the increase of the float-arm length under the target sea state，and the maximum total power reaches its maximum of 10.26 kW when arm ratio equals to 3.5.
| Translated title of the contribution | CFD study for swing-arm type wave energy converter based on hydraulic load |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 60-66 |
| Number of pages | 7 |
| Journal | Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) |
| Volume | 52 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2024 |
| Externally published | Yes |
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