利用乘波浮标阵分解和预报初始均匀双向水波
Decomposition and Prediction of Initial Uniform Bi-directional Water Waves Using an Array of Wave-Rider Buoys
摘要：
波浪能转换器（WEC）的入射波预测是通过控制WEC来最大化能量吸收的必要条件。然而，很少有工作已经做了确定性预测的双向波，其波的方向是180 [deg.]对生为了分解和预测这样的双向波，被认为是一个阵列的三个乘波浮标。利用两侧浮标将双向波浪分解为前进波和后退波分量，利用分解后的波浪预报中间浮标的水面高程。确定性波浪预报是基于脉冲响应函数的，提出了一种余弦滤波脉冲响应函数，以减小由于截断函数的无限长而引起的误差。初始均匀的双向波的预测示出展示的性能的脉冲响应函数方法的时间序列预测。数值和实验的比较进行验证我们的建议。
英文摘要：
Prediction of incident waves to wave energy converters (WEC) is essential to maximize the energy absorption by controlling the WEC. Nevertheless, little work has been done on the deterministic prediction of bi-directional waves whose wave directions of components are 180 [deg.] opposite. To decompose and predict such bi-directional waves, an array of three wave-rider buoys are considered. Buoys on both sides are used for decomposing bi-directional waves into progressive and regressive wave components, and the surface elevation of the middle buoy is predicted by these decomposed waves. The deterministic wave prediction is based on the impulse response function, and a cosine-filtered impulse response function is proposed to reduce an error due to the truncation of the infinite length of the function. Predictions of initial uniform bi-directional waves are shown to demonstrate the performance of the impulse response function method to time-series prediction. Both numerical and experimental comparisons are carried out to validate our proposals.
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