静水中自由船模拖曳CFD模拟方法研究  

Numerical simulation of free ship model towed in still water

作　　者：吴乘胜[1] 陈雄[1] 孙立宪[1] 顾民[1] 朱德祥[2] 

机构地区：[1]中国船舶科学研究中心,江苏无锡214082 [2]上海市计算技术研究所,上海200040

出　　处：《船舶力学》2010年第8期823-833,共11页Journal of Ship Mechanics

摘　　要：基于RANS方程结合VOF处理自由面,建立了自由船模拖曳的数值模拟方法,并用于数条水面船模阻力的数值计算。数值模拟结果与模型试验的比较表明：在全Fr范围内,阻力数值计算结果与模型试验相差2%-3%之内,较拘束模计算准确度大为提高;兴波计算结果同样有明显改善;船模姿态的计算结果与模型试验也比较接近。建议在进行中高速水面船自由面绕流问题的数值计算时,使用自由模方法模拟。Numerical simulation of free ship model towed in still water is carried out in this paper by solv-ing RANSEs with VOF method for the treatment of free surface.The computed results of resistance,sink-age and trim for several surface ship models are compared with those of experiments and show quite good agreement.The prediction of resistance and wave profile is improved quite a lot as compared with that by restrained model simulation.

关 键 词：自由船模 数值模拟 RANS方程 VOF方法 

分 类 号：U661.3[交通运输工程—船舶及航道工程]