斜向波浪入射角和反射系数确定方法

在海岸工程和水池实验中常常需要同时确定斜向波浪的传播方向和与海岸结构物相遇时的反射系数。应用三点浪高仪测波和迭代求解方法,建立了同时确定斜向波浪入射角和反射系数的分析方法。通过模拟数值信号,研究了测点不同排列方式、不同波浪入射方向、不同入射频率下本方法的分析灵敏程度。数值研究表明当测点间距指标p和q不同时趋于零时,任何一种排列方式求得的波浪反射系数和波浪入射角均具有很高的分析精度。

Determining method for the reflection coefficient and the incident angle of oblique waves

For the reflection of oblique incident waves from an infinite structure,a method is proposed for determining the wave reflection coefficient and the wave incident angle by using three wave probes and an iterative method.Numerical examinations are carried out on the accuracy of the method for different arrangements of wave probes,different wave incident angles and different wave numbers.The examination shows that when p and q,the interval indexes between probes,do not approach to zero simultaneously the method can give very accurate results.