摘要
该文基于有限体积法开源软件OpenFOAM,求解不可压缩流体的连续方程和Navier-Stokes方程,建立了V形挡板式透空堤的波浪透射、绕射和越浪的三维数值波浪水池模型。控制体采用三维长方体,结构物周围进行了网格加密。在将数值计算结果与实验结果比较后验证了数学模型的准确性基础上,对60°夹角V形挡板式透空堤后的波高分布进行数值模拟,分别计算了竖板顶部高出静水面时仅有透浪和竖板顶部位于静水面时透浪加越浪情形下,相对水深d/L对V形挡板式透空堤后波高分布的影响。计算结果表明:仅有透浪情形,相对水深对V形挡板式透空堤后的比波高分布有较大的影响,V形挡板式透空堤对较短周期的波浪有较好的掩护效果。对比竖板相对入水深度t/d相同时仅有透浪和透浪加越浪情形,可见竖板顶部的越浪量主要影响堤后竖板附近区域的波高分布。
In this paper, the open source software—Open FOAM, which is based on finite volume method, is used to solve the continuous equation and Navier-Stokes equation for incompressible fluid, and the three-dimensional numerical pool model of wave transmission, diffraction and overtopping of V-shaped baffle-type permeable breakwater is established. The control bodies are three-dimensional cuboids, and the grids around the structure are smaller. The wave height distribution behind the 60°-angle V-shaped baffle-type permeable breakwater is simulated numerically, before that, using the comparison of the numerical results with the experimental results to verify the accuracy of the model. The influence of relative water depths d/L on the wave height distribution behind the V-shaped baffle-type permeable breakwater is calculated under the circumstance that there is only transmission at the bottom of the baffle and the condition that there is overtopping at the top of the baffle and transmission at the bottom of the baffle. The results show that the change of the relative water depths has a great influence on the wave height distribution after V-shaped baffle-type permeable breakwater when there is only wave transmission at the bottom of the baffle. The V-shaped baffle-type permeable breakwater has a better cover effect on the short-period waves. At the same time, for the same relative depth of the baffle t/d, the amount of overtopping mainly influences the wave height distribution near the baffle.
作者
蔡丽
王永学
王国玉
徐杰
赵东梁
CAI Li;WANG Yong-xue;WANG Guo-yu;XU Jie;ZHAO Dong-liang(Huadong Engineering Corporation Ltd., POWERCHINA, Hangzhou 311122, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;National Enterprise Technology Center, CCCC Second Harbor Engineering Company Ltd., Wuhan 430040, China)
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2018年第2期188-198,共11页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金项目(11272079)~~
关键词
三维数值水池
V形挡板式透空堤
波高分布
OPENFOAM
three-dimensional numerical pool
V-shaped baffle-type permeable breakwater
wave height distribution
OpenFOAM
