Nonlinear Wave Group Evolution in Shallow Water
Nonlinear Wave Group Evolution in Shallow Water
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DOI：
10.1061/(asce)0733-950x(2000)126:5(221
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发表时间：
2000-09
期刊：
影响因子：
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通讯作者：
E. Kit;L. Shemer;E. Pelinovsky;T. Talipova;O. Eitan;H. Jiao
中科院分区：
文献类型：
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作者：
E. Kit;L. Shemer;E. Pelinovsky;T. Talipova;O. Eitan;H. Jiao
在实验室波浪水槽中对等水深浅水中的波群演化进行了实验研究，并应用Korteweg-de弗里斯方程进行了数值模拟。实验结果与数值计算结果吻合较好。执行谐波分解，并分别给出载波频率、二次谐波和低次谐波的结果。实验和模拟进行了三个值的强迫振幅在造波机。研究了非线性参数及其与频散参数之比对波群沿水池沿着演化的影响。
Wave group evolution in shallow water of constant depth is investigated experimentally in a laboratory wave tank and simulated numerically applying the Korteweg-de Vries equation. Good agreement between the experimental and the numerical results is obtained. Decomposition into harmonics is performed, and the results are presented separately for the carrier wave frequency, second harmonic, and low harmonic. Experiments and simulations are performed for three values of the forcing amplitude at the wavemaker. The effect of the nonlinearity parameter and its ratio to the dispersion parameter on the evolution of the wave group along the tank is studied.