采用RANS方法的RNG k-ε湍流模型研究海洋工程船舶的流载荷特性，依据船舶型线图建立仿真模型，并对仿真区域及模型进行混合网格划分。通过改变入口条件及流体参数设定分别计算了不同傅汝德数、不同流攻角及不同流速变化率下船体周围流场及压力场分布。并对3种不同尺度船型分别进行仿真，以期获得一致化流场分布规律。所得结论对于研究船舶流载荷阻力预报、船体型线优化设计及船舶操纵控制有一定指导意义。
The RAN methods with RNG k-ε turbulence model are employed to study the current characteristic of ocean engineering ship. According to the hull profile diagram established the simulation model. The simulation domain and model are demarcated by using hybrid mesh generation method. To change the enter condition and flow parameter, the current profile and pressure profile around the hull are calculated under different Froud number, different current attack angle and different velocity changing rate, three different vessels in scales and shape are simulated to derive uniform current profile law. The derived conclusions have some guiding significance to the vessel current load prediction, hull profile design optimization and ship maneuvering and control.
2018,40(10): 82-86,92 收稿日期：2017-12-21
DOI：10.3404/j.issn.1672-7649.2018.10.016
分类号：U661.1
基金项目：国家自然科学基金资助项目（51479017）；中央基本科研业务费资助项目（3132016368）
作者简介：贾宝柱(1974-),男,博士,副教授,研究方向为船舶与海洋工程
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