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首页> 外文期刊>Water >Low Frequency Waves Detected in a Large Wave Flume under Irregular Waves with Different Grouping Factor and Combination of Regular Waves
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Low Frequency Waves Detected in a Large Wave Flume under Irregular Waves with Different Grouping Factor and Combination of Regular Waves

机译：在不同分组因子和规则波组合的不规则波下大波槽中检测到的低频波

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摘要

This paper describes a set of experiments undertaken at Universitat Politècnica de Catalunya in the large wave flume of the Maritime Engineering Laboratory. The purpose of this study is to highlight the effects of wave grouping and long-wave short-wave combinations regimes on low frequency generations. An eigen-value decomposition has been performed to discriminate low frequencies. In particular, measured eigen modes, determined through the spectral analysis, have been compared with calculated modes by means of eigen analysis. The low frequencies detection appears to confirm the dependence on groupiness of the modal amplitudes generated in the wave flume. Some evidence of the influence of low frequency waves on runup and transport patterns are shown. In particular, the generation and evolution of secondary bedforms are consistent with energy transferred between the standing wave modes.
机译：本文介绍了加泰罗尼亚政治大学在海事工程实验室的大型波浪水槽中进行的一组实验。这项研究的目的是强调波分组和长波短波组合制度对低频世代的影响。已经进行了特征值分解以区分低频。特别地，已经通过特征分析将通过光谱分析确定的测量的本征模式与计算的模式进行了比较。低频检测似乎证实了对波浪槽中产生的模态振幅的分组性的依赖性。显示了低频波对加速和传输模式影响的一些证据。特别地，次级床形的产生和演化与驻波模式之间传递的能量一致。

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