摘要
针对极地船舶浮冰区纯自航回转性能,以体积力代替螺旋桨,考虑船体、浮冰、流体、螺旋桨和舵等因素,采用计算流体力学(CFD)和离散元方法(DEM)进行浮冰区极地船冰载荷和回转运动性能求解,开展无冰水域、不同密集度浮冰水域的双桨双舵极地船的回转运动数值模拟,分析极地船冰载荷和运动特性。极地船在55%密集度浮冰区的回转直径约为无冰水域的1.60倍,在75%密集度浮冰区的回转直径约为无冰水域的1.88倍。极地船与浮冰碰撞是随机的,船体在回转过程中所承受的载荷及运动特性具有随机性。
In order to predict turning performance of polar ship in ice floes,the propeller is replaced by the body force.Taking into account factors such as the hull,ice floes,flow,propeller and rudder,the CFD-DEM coupling method is used to solve the ship-ice interaction and turning in ice floes.Numerical simulation of turning of a polar ship with two propellers and two rudders in ice-free water and ice floes is carried out,and ship-ice loads and motion characteristics are analyzed.The turning diameter in 55%concentration ice floes is about 1.60 times that in ice-free water;the turning diameter in 75%concentration ice floes is about 1.88 times that in ice-free water.The collision between the polar ship and ice floes is random,and the load on the hull during the turning has randomness.
作者
谢畅
周利
丁仕风
刘仁伟
XIE Chang;ZHOU Li;DING Shifeng;LIU Renwei(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang,212003)
出处
《中国造船》
EI
CSCD
北大核心
2023年第1期13-23,共11页
Shipbuilding of China
基金
国家重点研发计划项目(2022YFE0107000)
国家自然科学基金面上项目(52171259)
工信部高技术船舶科研项目(工信部重装[2021]342号)
作者简介
谢畅,男,1989年生,博士研究生,主要从事极地船线型及性能的研究;周利,男,1983年生,教授,主要从事极地船舶冰载荷、智能船舶的研究;通讯作者:丁仕风,男,1981年生,博士,正高级工程师,主要从事LNG、PCTC、极地破冰船的船型研发;刘仁伟,男,1992年生,讲师,主要从事冰区船舶及结构载荷的计算研究。
