| 波浪对透空式结构物冲击作用的光滑粒子流体动力学数值模拟 |
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| 引用本文： | 任冰,高睿,金钊,王国玉,王永学.波浪对透空式结构物冲击作用的光滑粒子流体动力学数值模拟[J].海洋学报,2012,34(1):163-177. |
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| 作者姓名： | 任冰 高睿 金钊 王国玉 王永学 |
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| 作者单位： | 大连理工大学 港口、海岸及近海工程国家重点实验室, 辽宁 大连 116024 |
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| 基金项目： | 国家自然科学基金资助项目(51179030;50921001)。 |
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| 摘 要： | 基于光滑粒子流体动力学(SPH)方法的二维数值波浪水槽模拟了规则波对透空式结构物的冲击作用。通过黎曼解和CSPM相结合的方法对连续方程和动量方程进行了修正。对造波边界采用虚粒子法模拟。提出了一种耦合计算方法来消除造波边界附近的压力波动现象,在结构物边界处设置了适合的冲击边界条件。应用修正的SPH模型模拟了规则波对浪溅区结构物的冲击作用,给出了结构物附近流场和压力场的变化特征,并应用物理模型试验结果对数值模型进行了验证。
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| 关 键 词： | 光滑粒子流体动力学 波浪冲击 数值水槽 |
| 收稿时间： | 2010/8/27 0:00:00 |
| 修稿时间： | 2011/6/13 0:00:00 |
The numerical simulation of wave slamming on an open-piled structure using the SPH model |
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| REN Bing,GAO Rui,JIN Zhao,WANG Guoyu and WANG Yongxue.The numerical simulation of wave slamming on an open-piled structure using the SPH model[J].Acta Oceanologica Sinica (in Chinese),2012,34(1):163-177. |
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| Authors: | REN Bing GAO Rui JIN Zhao WANG Guoyu and WANG Yongxue |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | A two-dimensional numerical flume is presented to investigate the regular wave slamming on an open-piled structure using the corrected SPH method. The model employs CSPM and Riemann solution to discretize the Navier-Stokes equations. Solid boundaries are simulated by wall particles. The pressures of these dummy particles are determined by a coupling approach, which can keep the pressure field more stable near the boundaries. A new impacting boundary condition is proposed to track the hydrodynamic characteristics around the structure. The improved SPH model is employed to simulate the regular wave impacting the open-piled structure in the splash zone. The main features of the velocity and pressure fields near the structure are presented. And the model is validated against the experimental data and a good agreement is observed. |
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| Keywords: | smoothed particle hydrodynamics wave slamming numerical flume |
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