倾斜板透空堤的消浪特性及流场分析  

Analysis of the wave dissipation characteristics and flow field of permeable breakwaters with inclined baffles

作　　者：桂劲松 夏曦 赵玄烈 GUI Jinsong;XIA Xi;ZHAO Xuanlie(College of Ocean and Civil engineering,Dalian Ocean University,Dalian 116023,China;College of Shipbuilding,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]大连海洋大学海洋与土木工程学院,辽宁大连116023 [2]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2022年第10期1406-1413,共8页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(52001086);辽宁省重点研发计划项目(2018228003)。

摘　　要：为了解决传统透空式防波堤消浪性能较差的问题,本文基于CFD方法采用OpenFOAM中DUTFOAM模型对倾斜板透空堤的水动力特性开展了数值模拟研究,分析了波浪经过倾斜板时的透射、反射和能量耗散特性,并给出了倾斜板端部的流场分布。研究结果表明:相比于传统的垂直挡板,倾斜板具有较小的透射系数和反射系数,较大的耗散系数;随着倾斜角度的增加,倾斜板底端处产生较大的旋涡,由此导致倾斜板的耗散系数增大,这有利于提升板状防波堤的消浪性能,优化了传统的透空式防波堤。To solve the problem of poor wave dissipation performance of traditional permeable breakwater, on the basis of the computational fluid dynamics method, numerical simulations are conducted on the hydrodynamic characteristics of permeable breakwaters with inclined plates by using the DUTFOAM model in OpenFOAM. The transmission, reflection, and energy dissipation characteristics of waves passing by an inclined plate are specifically analyzed, and the flow field distribution at the end of the inclined plate is given. Results show that, compared with the traditional vertical plate, the inclined plate has smaller transmission and reflection coefficients and a larger dissipation coefficient;a stronger vortex can be observed at the end of the inclined plate as the incline angle increases, which leads to a larger dissipation coefficient of the inclined plate. This condition is beneficial to improving the wave dissipation performance of the plate structure, thereby optimizing traditional permeable breakwater.

关 键 词：倾斜板 透射系数 反射系数 粘性耗散 流场 涡旋 OPENFOAM 计算流体力学 

分 类 号：TV92[水利工程—水利水电工程]