基于FLUENT的波浪溢流水动力数值模拟  

Hydrodynamic numerical simulation of combined wave and surge overtopping based on FLUENT

作　　者：黄飞扬 戴文鸿[1] 姚毓 陈羿名 HUANG Feiyang;DAI Wenhong;YAO Yu;CHEN Yiming(College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China)

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《海洋工程》2022年第3期159-168,共10页The Ocean Engineering

基　　金：国家重点研发计划项目(2016YFC0402501);国家自然科学基金项目(51479071)。

摘　　要：波浪溢流现象使得海堤受到了越浪和溢流的联合作用,复杂的水动力过程会引起海堤后坡产生严重的侵蚀破坏。基于FLUENT软件建立了二维数值波浪溢流水槽模型,该模型运用UDF速度边界造波法分析在不同超高条件下海堤后坡流量和水流厚度的水力学特性。结果表明数值模拟结果与前人物理模型试验结果吻合,该模型可以真实地模拟出海堤波浪溢流现象。在此基础上进一步研究了波浪溢流中越浪和溢流在不同相对超高条件下的主导性作用,而后建立了十分准确的波浪溢流海堤后坡稳定水流厚度计算公式。The combined wave and surge overtopping makes the seawall suffer the joint action of wave overtopping and surge overflow.The complex hydrodynamic process will cause serious erosion and damage to the inner slope of the seawall.Based on FLUENT software,a two-dimensional numerical wave overflow tank model is established.The model uses UDF velocity boundary wave making method to analyze the hydraulic characteristics of the flow rate and flow thickness of the back slope of the breakwater under different super high conditions.The results show that the results of the numerical simulation are in relatively good agreement with the previous physical model experimental results.The model can simulate the combined wave and surge overtopping of the sea embankment.On this basis,the dominant role of wave and overflow at different water heights is further studied.A formula for calculating the stable flow on the back slope of the seawall is finally proposed.

关 键 词：波浪溢流 FLUENT UDF 水动力特征 海堤后坡 水流厚度 

分 类 号：TV139.2[水利工程—水力学及河流动力学]