内河限制性航道船舶下沉量数值研究  

Numerical Calculation of Ship Sinking in Restricted Inland Waterways

作　　者：秦晨曦 段伦良 王多银[1] 段冰川 QIN Chen-xi;DUAN Lun-liang;WANG Duo-yin;DUAN Bing-chuan(National Engineering Research Center for Inland Waterway Regulation,Chongqing Jiaotong University,Chongqing 400074,China;College of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]重庆交通大学,国家内河航道整治工程技术研究中心,重庆400074

出　　处：《科学技术与工程》2023年第19期8428-8434,共7页Science Technology and Engineering

基　　金：国家自然科学基金(51979017);中国博士后面上基金(2020M683228);重庆市自然科学基金面上项目(cstc2021jcyj-msxmX1123)。

摘　　要：内河限制性航道中的船行波具有波高大、流速急等特点,于其中行驶的船舶会随着压力波动而发生纵倾变化,当下沉严重时会造成搁浅事故。以某通航工程为研究对象,借助计算流体力学软件,运用GMRES压力求解器和RNG k-ε(k为紊动能,ε为紊动能耗散率)湍流模型,开展了限制性航道中不同航速、不同水深以及不同隧道宽度共计32种工况下船舶航行下沉量研究。研究表明船舶最大下沉量以及最大纵倾角随着航速以及隧道宽度的增大而增大,随水深的增加而减小。相关结果可为内河限制性航道船舶安全航行提供科学指导。The ship traveling wave in the restricted channel of inland river has the characteristics of high wave height and rapid flow velocity.The ship traveling in the restricted channel will change its trim with the pressure fluctuation,and will cause grounding accident when it sinks seriously.Taking a navigation project as the research object,with the help of computational fluid dynamics software,GMRES pressure solver and RNG k-εturbulence model was used to study the ship s navigation subsidence under 32 conditions of different speed,different water depth and different tunnel width in the restricted channel.The research shows that the maximum subsidence and the maximum longitudinal inclination of the ship increase with the increase of the speed and the tunnel width,and decrease with the increase of the water depth.The results can provide scientific guidance for the safe navigation of ships in restricted inland waterways.

关 键 词：内河 限制性航道 船舶下沉量 最大纵倾角 GMRES压力求解器 RNG k-ε湍流模型 

分 类 号：U675.5[交通运输工程—船舶及航道工程]