Numerical Study of Wave Slamming on an Oscillating Flap
Numerical Study of Wave Slamming on an Oscillating Flap
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DOI：
10.1115/omae2014-23171
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发表时间：
2014-06
期刊：
影响因子：
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通讯作者：
Yanji Wei;A. Henry;O. Kimmoun;F. Dias
中科院分区：
文献类型：
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作者：
Yanji Wei;A. Henry;O. Kimmoun;F. Dias
底部铰接式振荡波浪浪涌转换器（OWSC）是用于从海洋波浪提取能量的有效装置。关于波浪撞击这种装置的知识有限。本文通过数值模拟研究了波浪对摆动襟翼的砰击，探讨了砰击事件的发生机理。在我们的模型中，Navier-Stokes方程离散使用有限体积法与流体体积（VOF）方法的界面捕捉。在数值波浪水槽中采用襟翼式造波机造波，采用动网格方法模拟襟翼的振荡运动。进行基本网格和时间步长细化研究。基于数值计算结果，分析了砰击事件中的流动特性。为了更好地理解砰击，我们进行了不同襟翼密度、水深和波幅的各种模拟。Copyright © 2014 by ASME
Bottom hinged Oscillating Wave Surge Converters (OWSCs) are efficient devices for extracting power from ocean waves. There is limited knowledge about wave slamming on such devices. This paper deals with numerical studies of wave slamming on an oscillating flap to investigate the mechanism of slamming events. In our model, the Navier–Stokes equations are discretized using the Finite Volume method with the Volume of Fluid (VOF) approach for interface capturing. Waves are generated by a flap-type wave maker in the numerical wave tank, and the dynamic mesh method is applied to model the motion of the oscillating flap. Basic mesh and time step refinement studies are performed. The flow characteristics in a slamming event are analysed based on numerical results. Various simulations with different flap densities, water depths and wave amplitudes are performed for a better understanding of the slamming.Copyright © 2014 by ASME