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Numerical investigation of solitary wave action on two rectangular boxes with a narrow gap

NING Dezhi,  SU Xiaojie,  ZHAO Ming

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文章导航 > Acta Oceanologica Sinica  > 2016 >  35(12): 89-99
宁德志, 苏晓杰, 赵明. 孤立波与带窄缝双箱相互作用模拟研究[J]. 海洋学报英文版, 2016, 35(12): 89-99. doi: 10.1007/s13131-016-0967-x
引用本文: 宁德志, 苏晓杰, 赵明. 孤立波与带窄缝双箱相互作用模拟研究[J]. 海洋学报英文版, 2016, 35(12): 89-99. doi: 10.1007/s13131-016-0967-x
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NING Dezhi, SU Xiaojie, ZHAO Ming. Numerical investigation of solitary wave action on two rectangular boxes with a narrow gap[J]. Acta Oceanologica Sinica, 2016, 35(12): 89-99. doi: 10.1007/s13131-016-0967-x
Citation: NING Dezhi, SU Xiaojie, ZHAO Ming. Numerical investigation of solitary wave action on two rectangular boxes with a narrow gap[J]. Acta Oceanologica Sinica, 2016, 35(12): 89-99. doi: 10.1007/s13131-016-0967-x
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孤立波与带窄缝双箱相互作用模拟研究

doi: 10.1007/s13131-016-0967-x
  • 1.

    大连理工大学, 海岸与近海工程国家重点实验室, 大连 116024, 中国

  • 2.

    大连理工大学, 海岸与近海工程国家重点实验室, 大连 116024, 中国;中交天津港航勘察设计研究院有限公司, 天津 300042, 中国

  • 3.

    西澳大利亚大学, 计算、工程和数学系, 珀斯, NSW 2751, 澳大利亚

Numerical investigation of solitary wave action on two rectangular boxes with a narrow gap

  • 1.

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China

  • 2.

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;CCCC Tianjin Port and Waterway Prospection and Design Research Institute CO., LTD, Tianjin 300042, China

  • 3.

    School of Computing, Engineering and Mathematics, University of Western Sydney, Penrith, NSW 2751, Australia

    摘要
  • 摘要: 针对孤立波与带窄缝双箱的作用问题，应用时域高阶边界元方法建立了二维数值水槽。其中，自由水面满足完全非线性运动学和动力学边界条件，对瞬时自由表面流体质点采用混合欧拉-拉格朗日法追踪，采用四阶龙格库塔法对下一时刻的自由水面的速度势和波面升高进行更新。采用加速度势法求解物体湿表面的瞬时波浪力。采用推板方法生成孤立波。通过模拟孤立波在直墙上的爬高以及施加在直墙上的波浪力，并与已发表的实验和数值结果对比，验证本数值模型的准确性。通过数值模拟计算研究了窄缝宽度、方箱尺寸对波浪在箱体迎浪侧爬高，窄缝内波面升高，箱体背浪侧透射波高及箱体受波浪荷载的影响。同时研究了有一定时间间隔的双孤立波与带窄缝双箱系统作用问题。
    Abstract: Based on the time-domain higher-order boundary element method (HOBEM), a two-dimensional numerical wave flume is developed to investigate solitary wave interaction with two rectangular boxes with a narrow gap. In the numerical model, the fully nonlinear boundary conditions are satisfied on the free surface, the mixed Eulerian-Lagrangian method is adopted to track the transient water surface and the fourth-order Runga-Kutta method is used to predict the velocity potential and wave elevation on the free surface. The acceleration potential technique is used to compute the transient wave forces along the wetted object surface. A piston-type wavemaker is used to generate solitary waves. The proposed model is validated by comparing the simulated wave run-up and the wave loads with the published experimental and numerical results of the reflection of a solitary wave from a vertical wall. Then, numerical experiments are performed to study the effects of the narrow gap and the size of each box on the wave run-ups at the two sides of the two-box system and in the narrow gap between two boxes, and the wave loads on the two boxes. The interaction between double solitary waves with a time interval between them with a two-box system is also investigated.
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出版历程
  • 收稿日期:  2015-09-06
  • 修回日期:  2015-10-15

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