| 研究課題/領域番号 |
22K14430
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分24020:船舶海洋工学関連
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| 研究機関 | 九州大学 |
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研究代表者 |
劉 盈溢 九州大学, 応用力学研究所, 助教 (30799127)
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| 研究期間 (年度) |
2022-04-01 – 2025-03-31
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| 研究課題ステータス |
交付 (2023年度)
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| 配分額 *注記 |
2,730千円 (直接経費: 2,100千円、間接経費: 630千円)
2024年度: 260千円 (直接経費: 200千円、間接経費: 60千円)
2023年度: 1,170千円 (直接経費: 900千円、間接経費: 270千円)
2022年度: 1,300千円 (直接経費: 1,000千円、間接経費: 300千円)
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| キーワード | hybrid wind-wave energy / eigenfunction expansion / oscillating water column / perforated plate / wave energy array / annual power production / multi-directional waves / floating wind energy / ocean wave energy / wave hydrodynamics / boundary element method / interaction theory |
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| 研究開始時の研究の概要 |
The goal of achieving carbon neutrality around 2050 has raised great challenges to the global community. To substitute conventional fuels, new renewable energy resources need to be explored. The proposed research aims to resolve several essential hydrodynamic problems arised in ocean energy plants.
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| 研究実績の概要 |
Offshore hybrid wind-wave energy systems provide an efficient way of harnessing ocean renewable energy. In the present work, an eigenfunction expansion approach is developed to model wave interactions with a typical such system, in which an oscillating water column (OWC) device is attached at a monopile foundation of an offshore wind turbine. Numerical results show that installing a ring-shaped perforated plate to the shell of the OWC chamber can effectively mitigate the system's horizontal wave force and bending moment. The reduction of wave loads is particularly significant with a low plate's porosity.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
The project has progressed smoothly, culminating in the development of the eigenfunction expansion approach for the hybrid ocean renewable energy system. Notably, significant physical findings have been published in the prestigious journal Physics of Fluids.
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| 今後の研究の推進方策 |
Further issues relating to the hydrodynamics of floating wind turbines or wave energy converters will be studied in the next year.
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