破损船操纵运动水动力及舱室流场的数值研究  

Numerical simulation of maneuvering hydrodynamic forces of damaged ship and viscous flow fields in damaged cabin

作　　者：邱云明[1] 陆冬青[1] 郝寨柳 

机构地区：[1]镇江船艇学院,江苏镇江212003 [2]武汉理工大学交通学院,湖北武汉430063

出　　处：《舰船科学技术》2015年第9期51-55,共5页Ship Science and Technology

基　　金：国家自然科学基金资助项目(10772139)

摘　　要：目前,对破损船操纵水动力研究很少。为计算破损船操纵水动力及其破舱室粘性流场特征,本文基于RANS方程,选取SST k-ω湍流模式,对某新型油船破舱进水后的斜航操纵运动进行数值模拟。计算出破损船在不同斜航角时的总阻力、横向压力、转首力矩的系数,探究其操纵水动力变化情况。模拟破舱室内的流场情况,分析破舱室水的运动特点。最后将破损船数值结果与试验结果进行比较,研究表明计算模型可行,能较好地计算破损船操纵水动力及其流场情况。该研究成果可为今后破舱操纵性规范的制定和船舶优化设计提供理论参考。The study of hydrodynamic forces of damaged ship is one of the most important subjects,but there are few researches in the study of maneuverability hydrodynamic of damaged ship. In order to calculate the maneuverability hydrodynamic and the flow fields in damaged cabin,RANS equations are applied,and SST k-w turbulence model is chosen to calculate the hydrodynamic force coefficients of one new oil tanker in damaged conditions. The total resistance coefficient,transverse force coefficient and bow turning moment coefficient are calculated during the oil tanker ship navigating in different yawed degrees,and the changes of the hydrodynamic characteristic is analyzed. The viscous flow fields in the damaged cabin are simulated. Then the hydraulic characteristic in the damaged cabin is analyzed based on the results of numerical calculation. The results of numerical calculation are also compared with experiment results in damaged conditions. The numerical results are almost agreed with experiment results. The research,which is innovative,indicates that calculation model applied is reasonable and credible,and the numerical results are of great reference for damaged maneuverability criteria and ship optimal design in the future.

关 键 词：破损船 CFD 数值模拟 操纵水动力 粘性流场 

分 类 号：U661.33[交通运输工程—船舶及航道工程]