Optimization of the geometry and the turbine induced damping for fixed detached and asymmetric OWC devices: A numerical study
Optimization of the geometry and the turbine induced damping for fixed detached and asymmetric OWC devices: A numerical study
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DOI：
10.1016/j.energy.2017.08.033
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发表时间：
2017-08
期刊：
影响因子：
9
通讯作者：
I. Simonetti;L. Cappietti;H. Elsafti;H. Oumeraci
中科院分区：
文献类型：
--
作者：
I. Simonetti;L. Cappietti;H. Elsafti;H. Oumeraci
本文介绍了一个两相不可压缩三维计算流体动力学（CFD）模型的设置，验证和应用的广泛的参数研究的性能的固定，分离振荡水柱（OWC）波能转换器。数值研究旨在评估相关设计参数（腔室长度、前壁吃水、涡轮机施加的阻尼）和波浪条件（波高、波浪周期和水深）对装置性能的综合影响，并参考其在中等波浪气候（例如，地中海中部）中的假设安装。这里检查的OWC设备是固定的，从海底分离，并具有不对称的前壁和后壁作为特征。结果表明，通过适当地调整设计参数，可以获得约0.87的捕获宽度比的最大值。
This paper presents the set-up, the validation and the application of a two-phase incompressible three-dimensional Computational Fluid Dynamic (CFD) model for an extensive parameter study on the performance of a fixed, detached Oscillating Water Column (OWC) wave energy converter. The numerical study aims to assess the combined effect of relevant design parameters (chamber length, front wall draught, damping applied by the turbine) and of the wave conditions (wave height, wave period and water depth) on the device performance, with reference to its hypothetical installation in moderate wave climates (e.g. in the Central Mediterranean Sea). The OWC device examined here is fixed, detached from the seabed, and with asymmetric front and back walls as a characteristic feature. The results show that, by appropriately tuning the design parameters, a maximum value of the capture width ratio of approximately 0.87 can be achieved.