摘要
以韩国船舶与海洋工程研究所(KRISO)的集装箱船模型KCS(KRISO container ship)和超大油轮模型KVLCC2M(modified KRISO very large crude carrier 2)为研究对象,基于通用CFD(computational fluid dynamics)软件平台STARCCM+,通过计算值与试验值的比较,研究了网格对自由面和伴流场的影响,形成了可以同时满足阻力计算精度和自由面及伴流场精度要求的网格划分规程.研究结果表明:边界层网格及水线面附近(无论是垂向还是纵向网格),都应该依据相应的壁面无量纲距离(y+)估算式及波长、波高估算式进行尺寸预估;自由面的计算对纵向网格尺度要求较高.
The viscous flow fields with free surfaces of KRISO tanker KVLCC2M and KRISO container ship KCS were numerically simulated with general CFD code STARCCM＋. Mesh effects on computation precisions of free surface and wake were researched by comprehensively comparison between the computational results and experimental data. And the meshing disciplines aiming to reach all the computation precision demands of not only resistance but also free surface and wake were derived. The results show that the minimum mesh size for wall boundary and free surface nearby should be predicted by the corresponding predictive expressions of dimensionless wall distance （y＋）, wave length and wave height. The free surface computation precision is more dependent on longitudinal mesh size along hull length.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2009年第10期1573-1576,共4页
Journal of Shanghai Jiaotong University
基金
教育部、财政部重大科研专项资助项目(教技函[2005]120号)
国防科工委高技术船舶科研计划重点资助项目
关键词
标称船模
阻力
自由面
伴流
benchmark ship
resistance
free surface
wake
