| 挑流冲坑紊流场的二维数值模拟 |
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| 引用本文： | 杨学军,李玉柱.挑流冲坑紊流场的二维数值模拟[J].水利水电技术,2002,33(2):22-25. |
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| 作者姓名： | 杨学军 李玉柱 |
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| 作者单位： | 清华大学水利水电工程系,北京,100084 |
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| 摘 要： | 利用代数应力模型对淹没冲击射流作用下的冲刷坑内紊流场结构进行了二维数值模拟。计算中采用贴体正交网格变换处理不规则的冲坑几何边界，用VOF方法处理自由水面条件对水流结构的影响。结果分析表明，采用的数值方法可行，计算结果合理，在此基础上，可进一步研究冲坑的消能机理和冲坑的动态发展过程。
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| 关 键 词： | 代数应力模型 贴体正交网格 数值模拟 抗流冲坑紊流场 有限差分网络 流速矢量 挑流消能 高坝 泄流消能 |
| 文章编号： | 1000-0860(2002)02-0022-04 |
| 修稿时间： | 2001年5月9日 |
2-D Numerical Simulation of Turbulent Flow Field in Scour Pool |
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| Yang Xuejun,Li Yuzhu.2-D Numerical Simulation of Turbulent Flow Field in Scour Pool[J].Water Resources and Hydropower Engineering,2002,33(2):22-25. |
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| Authors: | Yang Xuejun Li Yuzhu |
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| Abstract: | By using the ASM combined with orthogonal transformation,the numerical solutions of two-dimensional submerged impinging jets within a scour pool are obtained.The method is well suitable for the irregular boundary of the scour pool.The detailed distributions of average velocity,average pressure,turbulent kinetic energy,and the rate of its dissipation are obtained and compared with the theory analyses and the experimental values.Based on this work,the further study on the energy dissipation,scour developing process,and its final maximum depth can be found in detail. |
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| Keywords: | scour pool algebraic stress model body-fitted orthogonal grid numerical simulation |
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