沙质岸滩形态对海平面变化响应的数值研究

发布时间：2018-06-14 13:47

本文选题：海平面变化 + 岸滩形态　；参考：《水动力学研究与进展(A辑)》2017年01期

【摘要】：该文基于XBeach模型开展海平面上升导致波浪作用强度增加对岸滩演变的影响数值计算研究,通过经典波浪水槽实验及现场观测数据对模型进行验证,结果表明该模型可以准确地模拟波浪向岸传播过程中波高及流速的变化,能较好地预测波浪作用下岸滩的冲淤演化趋势,可用于岸滩演变冲淤变化数值计算研究。在Delta Flume实验的基础上,探讨海平面变化与岸滩演变之间的关系,结果表明,海平面上升和静水面位置变化是引起海岸动力作用强度不同的原因,在波浪作用不同的时间段,海平面上升直接淹没导致的岸线蚀退和海岸动力强度变化导致的岸线蚀退分别占据岸线蚀退总量的主导地位。
[Abstract]:This paper is based on the XBeach model to carry out the numerical calculation of the influence of sea level rise to the increase of wave action intensity on the beach evolution. The model is verified by the classic wave flume experiment and the field observation data. The results show that the model can accurately simulate the wave height and velocity changes during the wave to shore propagation, and it can be better. On the basis of Delta Flume experiment, the relationship between sea level change and beach evolution is studied on the basis of Delta Flume experiment. The result shows that the sea level rise and the change of the static surface position are the reasons that cause the different strength of the coastal dynamic action intensity, and in the wave action. With different time periods, the shoreline erosion resulting from the direct submergence of the sea level rise and the change of coastal dynamic strength, respectively, occupies the dominant position of the total erosion and retreat of the coastline.
【作者单位】：长沙理工大学水利工程学院;水沙科学与水灾害防治湖南省重点实验室;长沙理工大学水科学与环境工程国际研究中心;广州正见建筑工程设计有限公司;
【基金】：国家自然科学基金资助项目(51239001,51179015,51409022) 交通运输部应用基础研究项目(2015319825080)~~
【分类号】：TV148

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