逆流场中波要素的沿程变化

The Changes of Parameters of Dissipative Waves on Opposing Currents

本文基于波浪水流共存场中耗散波的波作用量守恒方程,在综合分析各种耗散形式的基础上,认为波高沿程近似于作指数型衰减。经水槽试验,求得衰减系数系βv,进而发现,复合因素βvLv与相对流速V/C_0之间有良好的线性关系。另外,试验结果表明逆流中波长沿程不变。

Based on the wave action flux conservation of dissipative waves in wave-current field and the analysis of wave action dissipations, an exponential model for wave attenuation is given. The test data show that the complex attenuation parameter βvLv has a good linear relation with the relative velocity V/C0 and the wave length keeps constant along the flume.