| 浅水型河道中扩散器垂向排放的三维数值模拟 |
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| 引用本文： | 槐文信,柴田敏彦.浅水型河道中扩散器垂向排放的三维数值模拟[J].水科学进展,1999,10(1):1-6. |
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| 作者姓名： | 槐文信 柴田敏彦 |
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| 作者单位： | 1.武汉水利电力大学 武汉 430072; |
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| 基金项目： | 武汉市青年科技晨光计划资助项目(项目编号:95501048-19) |
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| 摘 要： | 采用作者给出的三维紊流模型,结合混合有限分析法及交错网格对浅水型河道中扩散器垂向排放的流动进行了数值计算。重点对该类流动的两个流动特征进行了分析:一是水面的隆起高度,二是在横流情况下的流动转变条件。进而给出了这类排放水面的最小稀释度。这些特征的探讨对废水排入江河的水力设计有重要的参考意义。
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| 关 键 词： | 表面稀释度 扩散器 浅水 河道 数值模拟 流动转换 |
| 收稿时间： | 1997-08-04 |
| 修稿时间： | :1997-08-0 |
3 Dimensional Numerical Simulation for Multiple Vertical Jets Discharging into a Shallow Flowing Ambient |
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| Huai Wenxin,Toshihiko Shibata.3 Dimensional Numerical Simulation for Multiple Vertical Jets Discharging into a Shallow Flowing Ambient[J].Advances in Water Science,1999,10(1):1-6. |
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| Authors: | Huai Wenxin Toshihiko Shibata |
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| Affiliation: | 1.Wuhan University of Hydraulic and Electric Engineering, Wuhan 430072;2.Kyushu University, Fukuoka, 812 8581, Japan |
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| Abstract: | A three-dimensional mathematical model for calculating the steady flow of multiple non-buoyant turbulent jets in a cross flowing is present in this paper.For closing the control equation,the k-ε turbulence model is used in the mathematical model.The wall-function method is employed to treat the wall boundary condition at the bottom plane.The closed control equations are discretized by using hybrid finite analytic method on a non-uniform staggered grid system.The two characteristics for this kind flow are present:one is maximum surface elevation,an other is the condition for transform of flow type.The minimum dilution of water surface is given also.The results are reasonable and useful to design for waste water discharging into river. |
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| Keywords: | surface dilution diffuser shallow water channel numerical simulation transform of flow type |
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