| Investigation of Scouring Mechanism Around A Circular Pier |
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| 作者姓名： | 赵威 呼和敖德 |
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| 作者单位： | Institute of Mechanics Chinese Academy of Sciences，Institute of Mechanics，Chinese Academy of Sciences，Beijing 100080，China，Beijing 100080，China |
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| 摘 要： | In the present study,the flow field around a circular pier is investigated with experimental measurements and numerical simulations.The transient flow patterns during erosion are studied in detail.The results show that the traditional equations of particle motion are not perfect for the calculation of the sand motion under this complex flow situation.The scouring agents,such as turbulent intensity,the fluctuating pressure and the vertical pressure gradient,having many effects on the sand motion with the increasing scouring depth,need to be considered in modifying the traditional model.
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| 关 键 词： | 圆形桥墩 周围冲刷淘空 机理 湍流 数值模拟 |
| 收稿时间： | 2006-06-25 |
| 修稿时间： | 2006-12-22 |
Investigation of Scouring Mechanism Around A Circular Pier |
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| ZHAO Wei,HUHE Aode.Investigation of Scouring Mechanism Around A Circular Pier[J].China Ocean Engineering,2007,21(1):163-174. |
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| Authors: | ZHAO Wei HUHE Aode |
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| Abstract: | In the present study,the flow field around a circular pier is investigated with experimental measurements and numerical simulations.The transient flow patterns during erosion are studied in detail.The results show that the traditional equations of particle motion are not perfect for the calculation of the sand motion under this complex flow situation.The scouring agents,such as turbulent intensity,the fluctuating pressure and the vertical pressure gradient,having many effects on the sand motion with the increasing scouring depth,need to be considered in modifying the traditional model. |
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| Keywords: | scouring mechanism turbulent flow numerical simulation experimental measurement |
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