| 基于重叠网格技术数值模拟船舶纯摇首运动 |
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| 引用本文： | 王建华,万德成.基于重叠网格技术数值模拟船舶纯摇首运动[J].水动力学研究与进展(A辑),2016(5):567-574. |
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| 作者姓名： | 王建华 万德成 |
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| 作者单位： | 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高新船舶与深海开发装备协同创新中心,上海,200240 |
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| 基金项目： | 国家自然科学基金项目(51379125;11272120)，长江学者奖励计划(T2014099)，上海高校东方学者特聘教授岗位跟踪计划(2013022)，本文工作还得到工信部数值水池创新专项VIV/VIM项目(2016-23、29)资助.Supported by the National Natural Science Foundation of China(51379125;11272120)，the Chang Jiang Scholars Program(T2014099)，the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning(2013022) |
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| 摘 要： | 该文采用基于非定常RANS方程的黏性数值模拟方法,对标准船模DTMB5512裸船体在平面运动机构(PMM)控制作用下的纯摇首运动进行了数值模拟。文中数值计算采用基于开源CFD工具包Open FOAM和重叠网格技术开发的多功能水动力学求解器naoe-FOAM-SJTU。根据SIMMAN2014提供的标准算例,对同一运动频率下,在Fn=0.28工况下的3种不同运动幅值的纯摇首运动进行了数值计算,得出了船舶不同工况下的阻力、侧向力和转首力矩的历时曲线。并且根据操纵性数学模型(MMG)推导出相应的水动力导数值,所有计算结果同模型试验数据吻合较好,验证了采用当前处理方法数值求解纯摇首运动的可靠性。
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| 关 键 词： | 重叠网格 平面运动机构(PMM) 纯摇首 naoe-FOAM-SJTU求解器 |
Numerical simulation of pure yaw motion using dynamic overset grid technology |
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| Abstract: | This paper presents the URANS simulation and analysis of the hydrodynamic characteristics for the surface combatant Model 5512 bare hull under dynamic planar motion mechanism (PMM).All the numerical computations are carried out by in-house solver naoe-FOAM-SJTU coupled with dynamic overset grid method.In the present work,the ship model is subjected to pure yaw motion at Froude number 0.28.The hydrodynamic forces and moments acting on the ship are obtained for further analysis.According to the MMG mathematical model,the hydrodynamic derivatives are obtained.All the above numerical results have been compared to the experimental data presented at SIMMAN 2014.All the predicted hydrodynamic derivatives agree well with the experimental data,which indicates that the present solver coupled with dynamic overset grid method is applicable for the simulation of pure yaw motion. |
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| Keywords: | Pure yaw PMM Dynamic Overset Grid naoe-FOAM-SJTU |
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