| 不规则波作用下沿岸流流速分布规律分析 |
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| 引用本文： | 王国玉,张琪,赵银林.不规则波作用下沿岸流流速分布规律分析[J].海洋工程,2021,39(3):11-20. |
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| 作者姓名： | 王国玉 张琪 赵银林 |
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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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| 摘 要： | 基于MIKE21 PMS,对1/10、1/20、1/40、1/100四种不同坡度地形下不规则波浪产生的沿岸流进行数值模拟。将模拟得到的流速随着离开静水岸线距离的变化曲线进行无量纲化处理,并选用高斯分布函数对流速曲线进行拟合,进而得到高斯分布函数中流速最大值与其出现位置以及流速分布宽度等参数随着入射波浪要素和地形坡度的变化关系。研究结果表明,文中给出的高斯分布函数适用于描述不规则波浪作用生成的沿岸流流速分布规律。
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| 关 键 词： | 波生流 不规则波 高斯分布函数 流速分布 沿岸流 |
| 收稿时间： | 2020/4/27 0:00:00 |
Analysis of alongshore current velocity generated by irregular waves |
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| WANG Guoyu,ZHANG Qi,ZHAO Yinlin.Analysis of alongshore current velocity generated by irregular waves[J].Ocean Engineering,2021,39(3):11-20. |
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| Authors: | WANG Guoyu ZHANG Qi ZHAO Yinlin |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | Based on the MIKE21 PMS model, the alongshore current generated by the irregular waves was simulated and demonstrated with the slopes of 1/10, 1/20, 1/40 and 1/100. The variations of the non-dimensional velocity along with the distance are presented and discussed in this paper. Gaussian distribution function is applied for the non-dimensional velocity distribution curve fitting. The maximum velocity with its position and the distribution width are derived from the incident wave conditions and the topographic slope. It is demonstrated that the alongshore current generated by irregular waves can be described by Gaussian distribution as expected. |
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| Keywords: | wave-induced current irregular wave gaussian distribution function velocity distribution alongshore current |
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