Wave–current interactions: an experimental and numerical study. Part 2. Nonlinear waves
Wave–current interactions: an experimental and numerical study. Part 2. Nonlinear waves
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DOI：
10.1017/s0022112090000519
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发表时间：
1981-09
影响因子：
3.7
通讯作者：
G. Thomas
中科院分区：
文献类型：
--
作者：
G. Thomas
对于有限振幅的波，考虑了规则波列与具有任意涡度分布的流在二维中的相互作用。建立了一个数值模型，主要用于有限水深区域，推广了Dalrymple(1973,1977)的工作，并用于预报波浪下的波长和粒子速度。这些预测与实验数据符合得很好，并阐明了涡度在波流相互作用中的重要性。考虑了有限幅度波在缓慢变化的无旋电流上的幅度和波长调制；理论和实验之间有一定的一致性。
The interaction between a regular wavetrain and a current possessing an arbitrary distribution of vorticity, in two dimensions, is considered for waves of finite amplitude. A numerical model is constructed, primarily for use in the finite depth regime, extending the work of Dalrymple (1973, 1977) and this is used to predict the wavelength and the particle velocities under the waves. These predictions agree very well with experimentally obtained data and the importance of the vorticity in the wave–current interaction is clarified. Amplitude and wavelength modulations are considered for finite amplitude waves on a slowly varying irrotational current; moderate agreement is found between theory and experiment.