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您的检索式：作者名="Robert Mayon"
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| 1 | 不规则波作用下岸基式振荡水柱波能装置的水动力性能研究显示文摘为了研究真实海域中振荡水柱(OWC)波能转换装置的水动力性能,本文基于势流理论和高阶边界元方法,建立了不规则波与岸基式OWC波能装置相互作用的二维非线性数值模型,不规则波基于JONSWAP谱生成。为了考虑由于水体黏性引起的能量耗散,在气室内水面边界条件中引入人工黏性阻尼。并在大连理工大学波流水槽中开展了物理模型试验,对数值模型的有效性进行了验证。研究发现,在不规则波作用下,OWC波能装置的水动力效率相较于规则波作用下有所降低,特别是在低频波区域效率差值最大。与规则波相比,不规则波浪作用下装置峰值效率对应的频率变大。气室内的相对水面高程随着有效波高的增加而降低,而气室内相对气压则随有效波高的增加而增大。OWC波能装置的水动力效率受有效波高的影响较小,其峰值效率对应的频率不受波浪非线性的影响。本文可以为OWC波能装置的设计提供参考。 | 傅磊 宁德志 王荣泉 Robert Mayon | 2024 | 海洋学报2024，46，1： | 0 |
| 2 | Hydrodynamic Performance of A Porous-Type Land-Fixed Oscillating Water Column Wave Energy Converter显示文摘A hybrid, porous breakwater-Oscillating Water Column(OWC) Wave Energy Converter(WEC) system is put forward and its hydrodynamic performance is investigated using the fully nonlinear, open-source computational fluid dynamics(CFD) model, OpenFOAM. The permeable structure is positioned at the weather side of the OWC device and adjoined to its front wall. A numerical modelling approach is employed in which the interstices within the porous structure are explicitly defined. This permits the flow field development within the porous structure and at the OWC front wall to be observed. The WEC device is defined as a land-fixed, semi-submerged OWC chamber. A range of regular incident waves are generated at the inlet within the numerical tank. The OWC efficiency and the forces on the structure are examined. Results are compared for the simulation cases in which the porous component is present or absent in front of the OWC chamber. It is found that the incorporation of the porous component has minimal effect on the hydrodynamic efficiency of the OWC, reducing the efficiency by less than 5%. Nevertheless,the forces on the front wall of the OWC can be reduced by up to 20% at the higher wave steepness investigated,through inclusion of the porous structure at the OWC front wall. These findings have considerable implications for the design of hybrid OWC-breakwater systems, most importantly in terms of enhancing the durability and survivability of OWC WECs without significant loss of operational efficiency. | Robert MAYON NING De-zhi ZHANG Chong-wei Lars JOHANNING | 2022 | China Ocean Engineering2022，36，1： | 0 |
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