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| Y型明渠交汇水流分离区的数值分析 | |
| 引用本文： | 郭维东 梁岳 冯亚辉 胡志华. Y型明渠交汇水流分离区的数值分析[J]. 河海科技进展, 2007, 27(6): 49-52 |
| 作者姓名： | 郭维东 梁岳 冯亚辉 胡志华 |
| 作者单位： | 沈阳农业大学水利学院,辽宁沈阳110161 |
| 摘 要： | 针对Y型明渠交汇口的水流特性，应用三维各向异性的雷诺应力模型，采用交错网格上的有限体积法离散控制方程，用SIMPLE算法求解压力-速度场。数值计算结果与物理模型试验结果吻合较好，并据此重点探讨了不同交汇角条件下交汇口分离区尺寸的变化规律，提出Y型交汇水流分离区的定义和分离区尺寸与汇流比的函数关系。 |
| 关 键 词： | 交汇水流 水流分离区 分离区尺寸 汇流比 Y型明渠 |
| 文章编号： | 1006-7647（2007）06-0049-04 |
| 收稿时间： | 2007-07-15 |
Numerical analysis of flow separation zone at junctions of Y-shaped open channels |
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| GUO Wei-dong, HANG Yue, FENG Ya-hui, HU Zhi-hua. Numerical analysis of flow separation zone at junctions of Y-shaped open channels[J]. , 2007, 27(6): 49-52 | |
| Authors: | GUO Wei-dong HANG Yue FENG Ya-hui HU Zhi-hua |
| Abstract: | According to the flow characteristics at junctions of Y-shaped open channels, the 3D anisotropie Reynolds stress model was adopted in this study. The staggered grids-based finite volume method was used to discrete the control equation, and then the pressure-velocity field was solved with the SIMPLE algorithm. The model was verified with the relevant experhnental data which were in conformity with the numerical result. After that, the variation law of the size of Y-shaped separation zones at junctions was discussed under different confluent angles, and the definition of Y-shaped separation zones as well as the relationship between the size of the separation zones and confluence ratio was put forward. |
| Keywords: | confluence flow flow separation zone size of separation zone confluence ratio Y-shaped open channel |
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