船行波对通航隧道断面尺寸影响的数值模拟分析  

Numerical analysis of ship wave influence on cross-section size of a navigable tunnel

作　　者：王孟飞 邓斌[1,2,3] 蒋昌波 陈杰[1,2,3] WANG Mengfei;DENG Bin;JIANG Changbo;CHEN Jie(School of Hydraulic and Environmental Engineering,Changsha University of Science&Technology,Changsha 410114,China;Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province,Changsha 410114,China;Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province,Changsha 410114,China)

机构地区：[1]长沙理工大学水利与环境工程学院,湖南长沙410114 [2]水沙科学与水灾害防治湖南省重点实验室,湖南长沙410114 [3]洞庭湖水环境治理与生态修复湖南省重点实验室,湖南长沙410114

出　　处：《水利水电科技进展》2022年第4期61-66,共6页Advances in Science and Technology of Water Resources

基　　金：湖南省教育厅资助科研项目(20A007);湖南省科技创新计划(2020RC3037,20hnkj019)。

摘　　要：为探讨船行波对通航隧道断面尺寸的影响,基于完全非线性Boussinesq方程的开源程序包FUNWAVE-TVD建立了通航隧道内船行波传播的数值模型,重点分析了通航隧道内最大船行波波高及横向流速的时空分布规律,探讨了船舶吃水深度、弗劳德数、通航隧道水深和宽度以及船型对通航隧道内最大船行波波高和横向流速的影响;基于船行波波高历时分析,提出了计算通航隧道垂向断面高度的经验公式,并结合船行波破碎生成的横向流速和现行内河通航标准,给出了通航隧道内安全航行的水流条件及隧道横向断面尺寸的设计建议。结果表明:受隧道两侧直立壁反射影响,船尾波易受通航隧道岸壁影响叠加形成较大波高,越靠近隧道岸壁位置,最大横向流速越小;当船舶达到设计吃水深度时,产生的船行波不易破碎,最大横向流速较小。To discuss the influence of ship waves on the cross-section size of a navigation tunnel,a numerical model of ship wave propagation in navigation tunnel was established based on the open source package FUNWAVE-TVD of completely nonlinear Boussinesq equation.The spatial and temporal distribution of maximum ship wave height and lateral velocity in navigation tunnel was emphatically analyzed,and the influences of ship draft,Froude number,water depth and width of navigation tunnel and ship type on the maximum ship wave height and lateral velocity in navigation tunnel were discussed.Based on the duration analysis of ship wave height,an empirical formula for calculating the vertical section size of navigable tunnel was proposed.Combined with the transverse velocity generated by ship wave breaking and the current inland navigation standards,the reference of water flow conditions for safe navigation in navigable tunnel and the construction requirements of tunnel transverse section size were given.The results show that,due to the reflection of the vertical walls on both sides of the tunnel,the coda wave is easily affected by the navigation tunnel bank wall to form a large wave height,and the closer it is to the bank wall of the tunnel,the lower the maximum transverse velocity is.When the ship reaches the design draft,the ship wave is not easy to break,and the maximum transverse velocity is low.

关 键 词：船行波 通航隧道 断面尺寸 BOUSSINESQ方程 FUNWAVE-TVD 

分 类 号：U612.334[交通运输工程—船舶及航道工程]