| 两层粘性流体中运动球体尾流的数值模拟 |
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| 引用本文： | 张海伟,尤云祥,魏岗,缪国平.两层粘性流体中运动球体尾流的数值模拟[J].上海交通大学学报,2007,41(2):194-198. |
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| 作者姓名： | 张海伟 尤云祥 魏岗 缪国平 |
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| 作者单位： | 上海交通大学,船舶海洋与建筑工程学院,上海,200030;上海交通大学,船舶海洋与建筑工程学院,上海,200030;上海交通大学,船舶海洋与建筑工程学院,上海,200030;上海交通大学,船舶海洋与建筑工程学院,上海,200030 |
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| 基金项目： | 全国高等学校优秀博士学位论文作者专项基金;国家自然科学基金 |
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| 摘 要： | 采用求解Navier-Stokes方程的方法,研究了有限深两层粘性流体中定常运动球体激发波动的问题.基于体积分数方法,成功地数值模拟了球体运动在自由面和内界面上激发尾迹的特征,揭示了Froude数、密度比和潜深对自由面和内界面尾迹的波系分布和波形结构的影响.结果表明,采用计算流体力学手段预报运动潜体粘性分层流场是可行的.
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| 关 键 词： | 两层流体 体积方法 内波 尾迹 |
| 文章编号： | 1006-2467（2007）02-0194-05 |
| 收稿时间： | 2006-03-12 |
| 修稿时间： | 2006年3月12日 |
The Numerical Simulation for Waves Generated by a Moving Body in a Viscous Two-layer Fluid |
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| ZHANG Hai-wei,YOU Yun-xiang,WEI Gang,MIAO Guo-ping.The Numerical Simulation for Waves Generated by a Moving Body in a Viscous Two-layer Fluid[J].Journal of Shanghai Jiaotong University,2007,41(2):194-198. |
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| Authors: | ZHANG Hai-wei YOU Yun-xiang WEI Gang MIAO Guo-ping |
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| Abstract: | The waves generated by a moving body beneath the free surface with constant speed in a viscous two-layer fluid of finite depth were studied by solving the Navier-Stokes equation.The volume-of-fluid(VOF) method was used to simulate the characteristics of the surface and interface wakes excited by a moving ball,The effects of the density ratio,the Froude number and the location for the moving ball on the wave patterns and structures of the surface and interface wakes were numerically evaluated.The results indicate that the capability of the computational fluid mechanics approach to the prediction of the viscous stratified flow of a moving submarine is validated. |
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| Keywords: | two-layer fluid volume-of-fluid approach(VOF) internal wave wake |
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