基于OpenFOAM的沉箱与梳式防波堤水动力特性比较  

Hydrodynamic characteristics comparison of caisson-type and comb-type breakwater based on OpenFOAM

作　　者：万祥 李雪艳[1] 谢天 孙家文 解晓敏 程志 WAN Xiang;LI Xue-yan;XIE Tian;SUN Jian-wen;XIE Xiao-min;CHENG Zhi(Coastal Research Institute&Shandong Marine Aerospace Equipment Technology Innovation Center,Ludong University,Yantai 264025,China;International Marine Environment Monitoring Center,Dalian 116085,China)

机构地区：[1]鲁东大学,海岸研究所&山东省海上航天装备技术创新中心,山东烟台264025 [2]国际海洋环境监测中心,辽宁大连116085

出　　处：《水运工程》2022年第6期1-8,共8页Port & Waterway Engineering

基　　金：国家自然科学基金项目(51709140;41901006;41471005);山东省海上航天装备技术创新中心(鲁东大学)开放课题基金(MAETIC2021B)。

摘　　要：为比较沉箱与梳式防波堤水动力特性的差异,基于OpenFOAM建立了波浪与上述两种结构相互作用的数值模型,分析不同周期作用下反射系数、波浪压强与流场分布特征。结果表明:1)随相对堤宽的增大,沉箱防波堤对波浪的反射系数较梳式防波堤大。2)不同测点处的波浪压强差异显著,梳式防波堤背板处的波浪压强较沉箱防波堤迎浪面相应处波浪压强明显增大。3)梳式防波堤在梳齿空腔内的水体流速较沉箱防波堤迎浪面前方显著增大。4)建议在实际工程中选择梳式防波堤。In order to compare the difference of hydrodynamic characteristics between the caisson-type and comb-type breakwater,a numerical model of wave and the above two structures interaction is established based on OpenFOAM to analyze the reflection coefficients,wave pressure,and flow field distribution characteristics in different periods.The results show that:1)The reflection coefficient of the caisson-type breakwater is larger than the comb-type breakwater with the increase of relative width of the breakwater.2)The differences in wave pressure at different measuring points are significant,and the wave pressure at the back plate of the comb-type breakwater is significantly higher than the wave pressure at the corresponding position on the headwind surface of the caisson-type breakwater.3)The water velocity in the comb cavity of the comb-type breakwater is significantly higher than that in the front of the caisson-type breakwater.4)It is recommended to choose comb-type breakwater in the actual project.

关 键 词：沉箱防波堤 梳式防波堤 反射系数 波浪压强 流场 

分 类 号：U656[交通运输工程—港口、海岸及近海工程]