| 淹没水跃的数值模拟 |
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| 引用本文： | 戴会超,王玲玲. 淹没水跃的数值模拟[J]. 水科学进展, 2004, 15(2): 184-188 |
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| 作者姓名： | 戴会超 王玲玲 |
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| 作者单位： | 中国长江三峡开发总公司,湖北,宜昌,443002;河海大学水利水电工程学院,江苏,南京,210098 |
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| 基金项目： | 江苏省教育厅资助项目(K2080)~~ |
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| 摘 要： | 利用标准双方程紊流模型数值模拟了进口Fr1为819、淹没度为024、闸下出流形成的淹没水跃。详细介绍了数值离散格式特别是用VOF方法跟踪非恒定自由表面的数值方法。将淹没水跃的数值模拟结果包括自由表面位置、平均流速、雷诺应力分量的分布与物模试验结果进行了对比,表明该数学模型及数值方法能够较为准确地模拟淹没水跃的大尺度紊流结构及其微观结构。
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| 关 键 词： | 淹没水跃 自由表面跟踪 紊流模型 数值模拟 |
| 文章编号： | 1001-6791(2004)02-0184-05 |
| 收稿时间： | 2002-11-22 |
| 修稿时间： | 2002-11-22 |
Refined simulation of submerged jump |
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| DAI Hui-chao,WANG Ling-ling. Refined simulation of submerged jump[J]. Advances in Water Science, 2004, 15(2): 184-188 |
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| Authors: | DAI Hui-chao WANG Ling-ling |
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| Affiliation: | 1.The Three Gorges Project Corporation, Yichang 443002, China;2.Hohai University, Nanjing 210098, China |
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| Abstract: | The standard k-ε turbulence rmdel was used to simulate turbulence characteristics of submerged hydraulic jump with the Froude number 8.19 and submergence factor 0.24.The tracking method of the moving free surface was investigated.The numerical predictions including surface profiles,hydrodynamic pressures,mean velocities and turbulence intensities were presented and compared with available experimental data.They provide insights into both the macroscopic structure and the turbulent structure of submerged hydraulic jumps. |
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| Keywords: | submerged jump tracking of the free surface turbulence model refined simulation |
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