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Prediction of the Wave Run-Up on Pile Breakwaters
| 题名： | Prediction of the Wave Run-Up on Pile Breakwaters |
| 正文语种： | eng |
| 作者： | Mingjian Yin;Xizeng Zhao;Min Luo;Yinqi Miao;Mingchang Li |
| 作者单位： | Ocean College Zhejiang Univ. Zhoushan 316021 Zhejiang China;Ocean College Zhejiang Univ. Zhoushan 316021 Zhejiang China School of Marine Engineering Equipment Zhejiang Ocean Univ. Zhoushan 316022 Zhejiang China The Engineering Research Center of Oceanic Sensing Technology and Equipment Ministry of Education China Guangdong Advanced Energy Laboratory (YANGJIANG Offshore Wind Lab) China;Ocean College Zhejiang Univ. Zhoushan 316021 Zhejiang China;Ocean College Zhejiang Univ. Zhoushan 316021 Zhejiang China;School of Marine Engineering Equipment Zhejiang Ocean Univ. Zhoushan 316022 Zhejiang China |
| 关键词： | Wave run-up; Pile breakwater; Flow pattern; Semiempirical formula; Velocity head method |
| 摘要： | Pile breakwaters have been adopted in coastal regions with soft seabeds, owing to their advantageous features. They are subjected to wave run-ups, which would increase the wave transmission and threaten the superstructures above the piles (e.g., wharves, bridges, and pipelines). However, there are still no systematic design codes for this kind of structure. In this paper, an accurate prediction of the wave run-up on a pile breakwater is proposed, using a combined experimental-numerical approach. An experimental campaign comprising the effects of wave steepness, relative wave height, relative pile diameter, and blockage ratio is carried out by recording the run-up of both regular and irregular waves. A computational fluid dynamics (CFD) model is validated by the experimental data and then utilized to examine the hydrodynamic process. Two distinct patterns are identified by the localized flow field, which depend on the relationship between the pile diameter and the incident wavelength and lead to significant differences in the run-up height. By analyzing the experimental data set, a semiempirical formula is developed in the framework of the velocity stagnation head method, which gives satisfactory predictions to the run-up of both regular and irregular waves. The research outcome can provide a guideline for the structural design of a pile breakwater. |
| 出版年： | 2023 |
| 期刊名称： | Journal of Waterway, Port, Coastal and Ocean Engineering |
| 卷： | 149 |
| 期： | 1 |
| 页码： | 04022026.1-04022026.19 |
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