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Mathematical modeling of oscillating water column wave energy converter devices over the undulated sea bed
Engineering Analysis With Boundary Elements ( IF 3.3 ) Pub Date : 2020-05-12 , DOI: 10.1016/j.enganabound.2020.03.017
Santanu Koley , Kshma Trivedi

The present study deals with the hydrodynamic performance of an OWC (oscillating water column) wave energy converter device placed on an undulated bed. The bed undulation is finitely extended and beyond that, the water bed is uniform in nature. The mathematical problem is studied in the two-dimensional Cartesian coordinate system under the linearized water wave theory. To solve the associated boundary value problem, a coupled eigenfunction expansion - boundary element method is used. The numerical convergence of the coupled eigenfunction expansion - boundary element method is provided. The effects of the width of the OWC device chamber, front wall submergence depth and inclination with the vertical axis, and the bed undulations on the hydrodynamic efficiency of the OWC device is discussed in detail.



中文翻译:

波浪状海床上振荡水柱波能量转换装置的数学模型

本研究涉及放置在起伏床上的OWC(振荡水柱)波能转换器的流体力学性能。水床的起伏有限地延伸,除此之外,水床的性质是均匀的。在线性水波理论下,在二维笛卡尔坐标系中研究了数学问题。为了解决相关的边值问题,使用了本征函数展开-边界元耦合方法。给出了本征函数展开-边界元耦合方法的数值收敛性。详细讨论了OWC设备腔室的宽度,前壁的浸入深度和垂直轴的倾斜度以及床的起伏对OWC设备的水动力效率的影响。

更新日期:2020-05-12
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