大连理工大学学报2025，Vol.65Issue(2)：191-201,11.DOI:10.7511/dllgxb202502010
斜坡前水平板波浪反射及周围流场特性研究
Wave reflection and surrounding flow field characteristics study of horizontal plate in front of steep revetment
摘要
Abstract
A horizontal plate set in front of the steep revetment can effectively reduce the wave run-up and the wave overtopping on the steep revetment,and reduce the impact and damage effect of the wave on the steep revetment and the infrastructure behind it.To systematically study the hydrodynamic characteristics of the horizontal plate in front of the steep revetment,such as wave reflection,flow field and vorticity field,the open source software package OpenFOAM® is used to establish numerical model to analyze the influencing factors such as the slope angle of the steep revetment,the horizontal distance between the horizontal plate and the toe of the steep revetment,the wave height and the wave period to the wave reflection and wave run-up on the steep revetment.The study results show that the wave reflection on the horizontal plate in front of the steep revetment can be reduced,and there is an optimal value 4:1 of the slope angle of the steep revetment on the back side of wave when the wave reflection coefficient reaches the minimum.When the slope angle of the steep revetment is 4∶1,the wave reflection coefficient reaches the minimum while the horizontal distance between the horizontal plate and the toe of the steep revetment is 0.1 times of wavelength.The wave reflection coefficient increases firstly and then decreases with the increase of wave height,but the decline amplitude is little.The wave reflection coefficient decreases firstly and then increases with the increase of the wavelength,and it reaches the minimum when the ratio of wavelength to water depth is about 4.1.The wave run-up decreases firstly and then increases with the increase of the horizontal distance between the horizontal plate and the toe of the steep revetment,increases firstly and then decreases with the increase of the length of the horizontal plate,decreases firstly and then increases with the increase of the submerged depth of the horizontal plate,and reaches the extremum when the horizontal distance between the horizontal plate and the toe of the steep revetment is 0.25 times of wavelength,the relative length of the horizontal plate is 0.25 and the relative submerged depth of the horizontal plate is 0.20,respectively.关键词
斜坡前水平板/数值模拟/波浪反射/波浪爬高/流场特性Key words
horizontal plate in front of steep revetment/numerical simulation/wave reflection/wave run-up/flow field characteristics分类
水利科学引用本文复制引用
田正林,王家俊,梁书秀,罗舒穗..斜坡前水平板波浪反射及周围流场特性研究[J].大连理工大学学报,2025,65(2):191-201,11.基金项目
国家自然科学基金资助项目(51779038) （51779038）
广东省自然科学基金资助项目(2023A1515012183) （2023A1515012183）
广东海洋大学科研启动费资助项目(120602-060302072003). （120602-060302072003）
