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基于坐标和IBM的大型圆柱波浪力数值模拟

康啊真,  祝兵,  邢帆

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文章导航 > 西南交通大学学报  > 2014 >  27(2): 233-239.
康啊真, 祝兵, 邢帆. 基于坐标和IBM的大型圆柱波浪力数值模拟[J]. 西南交通大学学报, 2014, 27(2): 233-239. doi: 10.3969/j.issn.0258-2724.2014.02.008
引用本文: 康啊真, 祝兵, 邢帆. 基于坐标和IBM的大型圆柱波浪力数值模拟[J]. 西南交通大学学报, 2014, 27(2): 233-239. doi: 10.3969/j.issn.0258-2724.2014.02.008
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KANG Azhen, ZHU Bing, XING Fan. Numerical Simulation of Wave Forces on Large Circular Cylinder Based on -Coordinate and Immersed Boundary Method[J]. Journal of Southwest Jiaotong University, 2014, 27(2): 233-239. doi: 10.3969/j.issn.0258-2724.2014.02.008
Citation: KANG Azhen, ZHU Bing, XING Fan. Numerical Simulation of Wave Forces on Large Circular Cylinder Based on -Coordinate and Immersed Boundary Method[J]. Journal of Southwest Jiaotong University, 2014, 27(2): 233-239. doi: 10.3969/j.issn.0258-2724.2014.02.008
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基于坐标和IBM的大型圆柱波浪力数值模拟

doi: 10.3969/j.issn.0258-2724.2014.02.008
基金项目: 

国家自然科学基金资助项目（51178397）

国家科技支撑计划资助项目子课题（2012BAG05B00）

详细信息
    作者简介:

    康啊真（1986-），女，博士研究生，研究方向为桥梁结构动力学及桥梁风浪耦合动力学，电话：15908149195，E-mail：xiaokang_198610@163.com

Numerical Simulation of Wave Forces on Large Circular Cylinder Based on -Coordinate and Immersed Boundary Method

    摘要
  • 摘要: 为探讨波浪效应下大型圆柱所受的波浪力，以多层坐标变换模型为基础，模拟随时间变化的自由表面，建立了三维波浪与结构物相互作用的数学模型.对三维波浪与大型圆柱波浪力进行了数值模拟，用浸没边界法（IBM）处理不规则结构物表面.结果表明：圆柱波浪力、力矩的数值计算结果与试验结果和理论解吻合，水平波浪力和力矩随波数先增大然后减小，竖向波浪力随波数增大而减小，建立的三维数学模型能够很好地模拟结构物所受的波浪力及力矩.

     

    Abstract: To investigate the wave forces acting on a large circular cylinder under wave effects, a three-dimensional numerical model for the interaction of three-dimensional waves and a structure was established based on the multiple-layer -coordinate transformation model used to simulate time-dependent free surface. Wave forces acting on a large circular cylinder were simulated numerically, the immersed boundary method (IBM) was used to deal with the irregular structure surface. The results indicate that the numerical simulation result of wave forces and moment on a large circular cylinder has a good agreement with experimental results and analytical solutions. Horizontal wave force and moment increase at a low wave number and decrease at a high wave number. Vertical force decreases with the increase of wave number. The established numerical model can well simulate wave forces and moment on a structure.

     

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出版历程
  • 收稿日期:  2013-09-13
  • 刊出日期:  2014-03-25

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