基于万吨级船舶阻力变化的大型人工水道断面尺度研究  

Research on the section scale of large artificial waterways based on the resistance change of 10000 ton ships

作　　者：林仁智 陆杨 诸裕良[1] 时健[1] LIN Renzhi;LU Yang;ZHU Yuliang;SHI Jian(College of Harbour,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China;Nanjing Hydraulic Research Institute,Nanjing 210024,China)

机构地区：[1]河海大学港口海岸与近海工程学院,南京210098 [2]南京水利科学研究院,南京210024

出　　处：《水道港口》2024年第1期43-50,共8页Journal of Waterway and Harbor

基　　金：国家自然科学基金长江水科学研究联合基金项目(U2040203);中央级公益性科研院所重点领域科研创新团队(Y220011);长江勘测规划设计研究有限责任公司自主创新项目(CX2022Z05-1)。

摘　　要：针对国内现行规范在可通行3000 t级以上船舶的大型人工水道断面尺度设计方面的规定不足,从限制性航道航速经济性角度出发,定义大型人工水道的经济航速断面,基于数学模型研究满足万吨级船舶(总长130 m×型宽22 m×设计吃水5.5 m)通航要求的经济航速断面尺度推荐参数区间。具体包括:基于完全非线性Boussinesq方程的开源程序包FUNWAVE-TVD建立了限制性航道中船行波传播变形及阻力变化数学模型,模拟研究了不同边坡比、航道底宽条件下船舶阻力变化规律,重点分析了航道底宽、边坡比对航行阻力的影响。研究结果表明:在大型人工水道设计时,对于梯形断面,经济航速断面设计时,坡比采用1:3较优,水深8 m时底宽取90 m,断面系数为7.54较优;水深9 m时,底宽取70 m,断面系数为7.21较优。This paper aimed at the shortcomings of the current domestic regulations on the design of large-scale artificial waterways that can pass 3,000 ton ships.From the perspective of the speed and economy of restricted waterways,defined the economic speed section of large artificial waterways.Based on mathematical models,studied the recommended parameter range of section sizes that met the navigation requirements of 10,000-ton ships(total length 130 m×type width 22 m×design draft 5.5 m).Specifically,Used the open source program package FUNWAVE-TVD based on the completely nonlinear Boussinesq equation to establish a mathematical model of ship wave propagation deformation and resistance change in a restricted channel.Simulated the change law of ship resistance under the conditions of different slope ratios and channel bottom widths,and focused on the influence of channel bottom width and side slope ratios on navigational resistance.The research results show that in the design of large-scale artificial waterways,for the trapezoidal section,the slope ratio should be 1:3,the bottom width should be 90 m when the water depth is 8 m,and the section coefficient should be 7.54;when the water depth is 9 m,the bottom width should be 70 m,and the section coefficient should be 7.21.

关 键 词：限制性航道 万吨级船舶 船舶阻力 经济航速断面 FUNWAVE-TVD 

分 类 号：U65[交通运输工程—港口、海岸及近海工程] TV143[交通运输工程—船舶与海洋工程]