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arXiv 2108.06563physics.flu-dynphysics.geo-ph
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中等水深波浪作用下的非线性动压力:理论与实验

Nonlinear dynamic pressure beneath waves in water of intermediate depth: Theory and experiment

A. V. Slunyaev, A. V. Kokorina, M. Klein

摘要:

同时测量了平面波在实验水槽中传播所产生的表面位移和波下动压力的数据,并与基于调制位重力波的不同近似的理论预测进行了比较。考虑了中等深度的规则波和不规则波序列。研究了由已知地表位移时间序列重建压力场的不同模型的效率(直接问题)。本文提出了一种新的弱调制弱非线性波的双分量理论。讨论了压力二次谐波垂直模的特性。

英文摘要:

The data of simultaneous measurements of the surface displacement produced by propagating planar waves in experimental flume and of the dynamic pressure beneath the waves are compared with the theoretical predictions based on different approximations for modulated potential gravity waves. Regular and irregular wave sequences in intermediate depths are considered. The efficiency of different models for reconstruction the pressure field from the known surface displacement time series (the direct problem) is investigated. A new two-component theory for weakly modulated weakly nonlinear waves is proposed showing the best performance among all applied models. Peculiarities of the vertical mode of the pressure second harmonic are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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