风对波状涌潮海塘越浪水动力特性影响的数值研究

doi:10.11978/2023139

热带海洋学报 ›› 2024, Vol. 43 ›› Issue (5): 116-130.doi: 10.11978/2023139CSTR: 32234.14.2023139

风对波状涌潮海塘越浪水动力特性影响的数值研究

王旭¹^,²(), 屈科¹^,²^,³(), 王梓峻¹, 杨元平⁴, 王超¹, 张良斌¹

1.长沙理工大学水利与环境工程学院, 湖南长沙 410114
2.洞庭湖水环境治理与生态修复湖南省重点实验室, 湖南长沙 410114
3.水沙科学与水灾害防治湖南省重点实验室, 湖南长沙 410114
4.浙江省水利河口研究院, 浙江杭州 310017

收稿日期:2023-09-27 修回日期:2023-12-13 出版日期:2024-09-10 发布日期:2024-10-10
作者简介:
王旭(1997—), 男, 安徽省阜阳市人, 硕士研究生, 主要从事波浪水动力研究。email: 1026075708@qq.com
基金资助:
国家重点研发计划项目(2022YFC3103601); 国家自然科学基金重点项目(51839002); 湖南省自然科学基金项目(2021JJ20043); 浙江省河口海岸重点实验室开放基金项目(ZIHE21009); 浙江省自然科学基金项目(LY22E090007); 浙江省水利厅科技计划项目(RC2020)

Numerical simulation study on the effect of wind on the hydrodynamic characteristics of undular tidal bores seawall

WANG Xu¹^,²(), QU Ke¹^,²^,³(), WANG Zijun¹, YANG Yuanping⁴, WANG Chao¹, ZHANG Liangbin¹

1. School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
2. Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
3. Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, China
4. Zhejiang Institute of Hydraulics & Estuary, Hangzhou 310017, China

Received:2023-09-27 Revised:2023-12-13 Online:2024-09-10 Published:2024-10-10
Supported by:
National Key Research and Development Program Project(2022YFC3103601); National Natural Science Foundation of China Key Project(51839002); Hunan Provincial Natural Science Foundation Project(2021JJ20043); Open Fund of Zhejiang Key Laboratory of Estuaries and Coasts(ZIHE21009); Zhejiang Provincial Natural Science Foundation(LY22E090007); Science and Technology Program Project of Zhejiang Province Water Resources Department(RC2020)

摘要/Abstract

摘要：

文章基于二维不可压缩两相流数值模型, 首先通过对比数值计算结果与试验数据, 验证了该两相流涌潮计算模型模拟波状涌潮与海塘相互作用的可靠性; 然后通过设置合理的计算工况, 系统分析了风速、涌潮高度、潮前水深和斜坡坡度对波状涌潮在海塘上的越浪水动力特性的影响。计算结果表明: 向岸风速会显著影响波状涌潮的海塘越浪量, 风速越大, 涌潮的越浪量越大, 且挡浪墙所受荷载也越大; 随着涌潮高度和潮前水深的增大, 涌潮越浪量和挡浪墙所受涌潮荷载也随之增大; 当增大海塘斜坡坡度时, 涌潮越浪量和挡浪墙所受涌潮荷载均呈现先增大后减小的趋势。

关键词: 波状涌潮, 风, 荷载, 越浪量, 水动力特性, 数值模拟

Abstract:

Based on the two-dimensional incompressible two-phase flow numerical model, the reliability of the two-phase flow surge computational model in simulating the interaction between the wave-like surge and the sea pond is verified by comparing the numerical computational results with the experimental data. Then, this paper systematically analyses the effects of wind speed, surge height, pre-tidal water depth and slope gradient on the wave-exceeding characteristics of the undulating surge on the seapond by setting up reasonable calculation conditions. Calculation results show that wind speed significantly affects the wave overtopping of the wave-like surge on the seapond, the higher the wind speed, the higher the wave overtopping of the surge, and the higher the load on the retaining wall; with the increase of surge height and pre-tidal depth, the wave overtopping of the surge and the load on the retaining wall increase; when the slope of the seapond is increased, the wave overtopping and the load on the retaining wall show the tendency to increase firstly and then decrease later. The research results of this paper have certain reference significance for the correct understanding of wave surge in the pond under the action of wind, and the change rule of the load law of wave retaining wall, which provides a scientific basis for the engineering design and safety assessment of water-related buildings in the river section of wave surge.

Key words: undular tidal bore, wind, surge load, overtopping, hydrodynamic characteristics, numerical simulation

王旭, 屈科, 王梓峻, 杨元平, 王超, 张良斌. 风对波状涌潮海塘越浪水动力特性影响的数值研究[J]. 热带海洋学报, 2024, 43(5): 116-130.

WANG Xu, QU Ke, WANG Zijun, YANG Yuanping, WANG Chao, ZHANG Liangbin. Numerical simulation study on the effect of wind on the hydrodynamic characteristics of undular tidal bores seawall[J]. Journal of Tropical Oceanography, 2024, 43(5): 116-130.

图/表 22

图1

图2

图3

图4

图5

图6

图7

表1

数值模拟工况设置表"

工况	无量纲风速	涌潮高度 $/ m$	潮前水深 $/ m$	斜坡坡度	佛劳德数
A₁	0	0.15	0.45	3	1.250
A₂	1	0.15	0.45	3	1.250
A₃	2	0.15	0.45	3	1.250
A₄	3	0.15	0.45	3	1.250
A₅	4	0.15	0.45	3	1.250
A₆	5	0.15	0.45	3	1.250
B₁	3	0.12	0.45	3	1.190
B₂	3	0.18	0.45	3	1.285
B₃	3	0.20	0.45	3	1.300
C₁	0	0.12	0.45	3	1.190
C₂	0	0.18	0.45	3	1.285
C₃	0	0.20	0.45	3	1.300
D₁	3	0.15	0.39	3	1.280
D₂	3	0.15	0.42	3	1.260
D₃	3	0.15	0.48	3	1.230
D₄	3	0.15	0.51	3	1.220
E₁	0	0.15	0.39	3	1.280
E₂	0	0.15	0.42	3	1.260
E₃	0	0.15	0.48	3	1.230
E₄	0	0.15	0.51	3	1.220
F₁	3	0.15	0.45	0	1.250
F₂	3	0.15	0.45	1	1.250
F₃	3	0.15	0.45	2	1.250
F₄	3	0.15	0.45	4	1.250
F₅	3	0.15	0.45	5	1.250
G₁	0	0.15	0.45	0	1.250
G₂	0	0.15	0.45	1	1.250
G₃	0	0.15	0.45	2	1.250
G₄	0	0.15	0.45	4	1.250
G₅	0	0.15	0.45	5	1.250

表1

图8

图9

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图11

图12

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图14

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图17

图18

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图20

图21

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风对波状涌潮海塘越浪水动力特性影响的数值研究

Numerical simulation study on the effect of wind on the hydrodynamic characteristics of undular tidal bores seawall

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