不同板式透空堤消浪性能的数值研究  

Numerical study on the wave attenuation performance of the different plate type open breakwaters

作　　者：李雪艳[1] 王庆[1] 朱小松 郭为军[3] 张俊斌 王丽雪 张之晨 李钦 LI Xue-yan;WANG Qing;ZHU Xiao-song;GUO Wei-jun;ZHANG Jun-bin;WANG Li-xue;ZHANG Zhi-chen;LI Qin(Coast Institute,Ludong University,Yantai 264025,China;China National Offshore OilCorporation,Beijing 100000,China;College of Environmental Sciences and Engineering,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]鲁东大学海岸研究所,山东烟台264025 [2]中海油研究总院有限责任公司,北京100000 [3]大连海事大学环境科学与工程学院,辽宁大连116026

出　　处：《船舶力学》2019年第10期1198-1209,共12页Journal of Ship Mechanics

基　　金：NSFC-山东联合基金项目（U1706220,U1806227）;国家自然科学基金项目（51709140,51879019,51609267,41471005）;国家重点研发课题（2017YFC0505902）;水沙科学与水灾害防治湖南省重点实验室开放基金项目（2016SS02）;海岸灾害及防护教育部重点实验室开放研究基金项目（201703）

摘　　要：本文基于N-S方程构建了波浪与板式透空堤相互作用的数值模型,利用理论解、前人研究结果验证了所建数值模型。在此基础上,共设计225种工况,对平板式、上弧板式和下弧板式三种透空堤开展了消浪性能数值研究。结果表明:在三种透空堤中,下弧板式透空堤在不同潜深条件下(d=-0.04 m、-0.02 m和0 m)的波面高程均为最低;98%工况情境下,下弧板式透空堤的透射系数Kt和反射系数Kr均为最小,相对于平板式和上弧板式透空堤其Kt最高可分别减小约40%和31%,反射系数Kr最高可分别减小约40%和43%;在相对板宽0.19~0.45范围内,下弧板式透空堤对波浪的能耗系数相对于平板式透空堤提高11.7%~36.7%;下弧板式透空堤的耗散波能占比最大,较平板式透空堤增大31.15%~42.31%,较上弧板式透空堤增大42.04%~53.68%。综合考虑波面高程、透射系数、反射系数、能耗系数及耗散波能等指标,下弧板式透空堤的消浪性能最优。A numerical model of the interaction between waves and plate type open breakwaters is bulit based on the Navier-Stokes(N-S)equations and verified by the results of theory and predecessors.The wave attenuation performance of the three open breakwaters including horizontal plate type,upper arc-plate type and lower arc-plate type is discussed for 225 cases on the basis of the verified model.The results show that the wave elevations of the lower arc-plate type open breakwater are the smallest at the different points for the different submergences(d=-0.04 m,-0.02 m and 0 m)among the different open breakwaters.The transmission and reflection coefficients of the lower arc-plate type open breakwater are the smaller than those of the horizontal plate type and upper arc-plate type for the 98%cases.Among them,the transmission coefficients of the lower arc-plate type open breakwater can be reduced about 40%and 31%respectively than those of the horizontal plate type and upper arc-plate type open breakwaters.The reflection coefficients of the lower arc-plate type open breakwater can be reduced about 40%and 43%respectively than those of the horizontal plate type and upper arc-plate type open breakwaters.Compared with the horizontal plate type open breakwater,the dissipation coefficient of the lower arc-plate type open breakwater can increase from 11.7%to 36.7%when the relative width is between 0.19 and 0.45.The dissipation energy proportion of the lower arc-plate type open breakwater is the biggest,which is increased from 31.15%to 42.31%and from 42.04%to 53.68%than those of the horizontal plate type and upper arc-plate type open breakwaters,respectively.Taking all into account,for example,wave elevations,transmission coefficient,reflection coefficient,dissipation coefficient and dissipation energy,the wave attenuation performance of the lower arc-plate type is the best among the above three open breakwaters.

关 键 词：弧板式透空堤 消浪性能 透射系数 反射系数 数值模拟 

分 类 号：U656.31[交通运输工程—港口、海岸及近海工程]