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基于显式有限元技术的二维、三维楔形刚体入水砰击数值模拟研究
Numerical prediction of water entry of a rigid wedge using an explicit finite element method with 2D and 3D models
【Author】 Hanbing Luo~1,Jinjian Wu~1,Zhi Zhang~1,Hui Wang~2 (1 Department of Naval Architecture and Ocean Engineering,Tianjin University,Tianjin,300072;2 China Ship Scientific Research Center,Wuxi,214082)
【机构】 天津大学船舶与海洋工程系; 中国船舶科学研究中心;
【摘要】 针对某楔形体入水砰击问题,分别建立了二维、三维刚体模型,采用显式有限元方法开展了数值预报工作。该楔形体的斜升角为22°,数值预报的加速度等结果与已发表的模型实验的结果进行了比较,吻合较好。针对模型网格密度开展了收敛性分析。
【Abstract】 An explicit finite element code is applied to study the impact of one rigid wedge subject to water entry. The wedge with dead rise angle 22 degree impacting the calm water in modeled with both 2D and 3D models.The numerical results are compared and validated against experimental slamming acceleration in time domain,obtaining very good comparisons.A convergence study for mesh density is carried out.
- 【会议录名称】 纪念徐秉汉院士船舶与海洋结构力学学术会议论文集
- 【会议名称】纪念徐秉汉院士船舶与海洋结构力学学术会议
- 【会议时间】2011-10-12
- 【会议地点】中国江苏无锡
- 【分类号】U661
- 【主办单位】中国船舶重工集团公司第七〇二研究所