| 双波群产生的低频波浪的实验研究 |
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| 引用本文： | 刘艳莉,邹志利,尹晶.双波群产生的低频波浪的实验研究[J].中国科技论文在线,2008(7):477-484. |
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| 作者姓名： | 刘艳莉 邹志利 尹晶 |
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| 作者单位： | 大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024 |
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| 基金项目： | 国家自然科学基金（50479053;10672034）; 高等学校博士科学点专项科研基金资助课题（20040141030） |
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| 摘 要： | 对五个不同海岸坡度（1：20、1：40、1：60、1：80和1：100）,进行双波群产生低频波浪的物理模型实验研究,研究所产生低频波浪的特征。结果表明,低频波浪的个数对大于1：80坡度的海岸是2个,而对1：100坡度的海岸是1个;低频波浪的波峰时间间隔近似等于波群周期;波谷时间间隔与波高无关,但依赖于波群周期和海岸坡度,本文根据实验结果给出该依赖关系的表达式。
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| 关 键 词： | 海洋工程 破波拍 实验研究 低频波浪 波群 |
Experimental research on the characteristics of low frequency waves induced by a couple of wave groups on beaches |
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| LIU Yanli,ZOU Zhili,YIN Jing.Experimental research on the characteristics of low frequency waves induced by a couple of wave groups on beaches[J].Sciencepaper Online,2008(7):477-484. |
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| Authors: | LIU Yanli ZOU Zhili YIN Jing |
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| Institution: | (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116024) |
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| Abstract: | The features of low frequency waves induced by a couple of wave groups are studied experimentally on five plane beaches with the slopes of 1：20, 1：40, 1：60, 1：80 and 1：100. Results reveal that the number of the reflected low frequency waves is two for the slope larger than 1：80 and one for 1：100 slope. It is shown that the interval between two successive reflected low frequency wave crests is almost equal to the period of incident wave groups, and that the interval between two successive reflected low frequency wave troughs is dependent on the period of incident wave groups and beach slope rather than wave height. In this paper the relationship is given among the wave trough intervals, period of wave groups and beach slope. |
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| Keywords: | ocean engineering surf beat experimental research low frequency wave wave groups |
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