全附体ONRT船模在波浪中自航的数值模拟

王建华; 万德成

doi:10.21656/1000-0887.370525

全附体ONRT船模在波浪中自航的数值模拟

doi: 10.21656/1000-0887.370525

上海交通大学船舶海洋与建筑工程学院; 海洋工程国家重点实验室(上海交通大学);高新船舶与深海开发装备协同创新中心, 上海 200240

基金项目: 国家自然科学基金(51379125; 51490675; 11432009; 51579145; 11272120); 长江学者奖励计划(T2014099)

详细信息

作者简介:
万德成，E-mail: dcwan@sjtu.edu.cn

中图分类号: U661.1; O242; O359
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- 被引次数: 0
出版历程
- 收稿日期: 2016-11-17
- 修回日期: 2016-11-27
- 刊出日期: 2016-12-15

Investigations of Self-Propulsion in Waves of Fully Appended ONR Tumblehome Model

State Key Laboratory of Ocean Engineering(Shanghai Jiao Tong University); School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Shanghai 200240, P.R.China

Funds: National Natural Science Foundation of China(51379125; 51490675; 11432009; 51579145; 11272120) and the Chang Jiang Scholars Program of China(T2014099)

摘要

摘要: 采用基于重叠网格技术的CFD方法数值研究了全附体ONRT船模在迎浪工况中自航的水动力特性.文中数值计算采用自主开发的面向船舶与海洋工程的CFD求解器naoe-FOAM-SJTU.自航计算中船体运动及螺旋桨转动等通过重叠网格技术完成，波浪环境则采用求解器中的三维数值造波和消波模块实现.计算中自航船模的螺旋桨转速通过静水自航数值计算得出，波浪工况计算采用东京2015 CFD会议中标准算例进行设置.数值计算结果，如船体运动、实时航速变化等，与试验数据进行了对比分析.此外，给出了数值预报的推力和扭矩系数，并且通过详细的流场信息来分析和解释了船模在波浪中自航过程中的水动力变化情况.数值预报结果同试验值吻合较好，说明采用当前结合重叠网格技术和CFD的数值方法可以很好地预报波浪中自航问题.
- 波浪中自航 /
- 重叠网格 /
- 船舶水动力学 /
- naoe-FOAM-SJTU求解器
Abstract: In the present work, the CFD-based method coupled with the dynamic overset grid technique is applied to investigate the hydrodynamic performance of the fully appended ONR tumblehome ship model under self-propulsion condition in head waves. All the computations are carried out by our in-house CFD solver naoe-FOAM-SJTU and the overset grid module is used to update the ship motions with rotating propellers while a self-developed 3D wave tank module is applied to generate desired wave environment. The ship model is advancing at its model point obtained with previous CFD results in calm water and the simulation is according to the benchmark case from the Tokyo 2015 CFD Workshop in ship hydrodynamics. The predicted results, i.e. ship motions and instantaneous advancing speeds are presented and compared with the available experimental data. Propulsion coefficients, K_T and K_Q, as well as detailed information of the flow field are also given to explain the hydrodynamic performance during the self-propulsion in waves. Good agreements are achieved which indicate that the present approach is applicable for the direct simulation of self-propulsion in waves.
- self-propulsion in waves /
- dynamic overset grid /
- ship hydrodynamics /
- naoe-FOAM-SJTU solver

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