| 阶梯溢流坝水流数值模拟及消能分析 |
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| 引用本文： | 陈永明,吉庆丰.阶梯溢流坝水流数值模拟及消能分析[J].灌溉排水学报,2006,25(2):68-71. |
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| 作者姓名： | 陈永明 吉庆丰 |
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| 作者单位： | 扬州大学,水利科学与工程学院,江苏,扬州,225009 |
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| 摘 要： | 利用k-ε紊流模型模拟了带有曲线自由表面的阶梯溢流坝和非阶梯溢流坝的紊流流场,采用流体体积分数法(VOF法)来确定自由表面。通过数值模拟,得到了2种溢流坝水流的较为合理的速度场,比较了二者的消能效果。模拟结果表明,阶梯溢流坝消能效果更好,阶梯溢流坝的消能率比非阶梯溢流坝的消能率高约17%。
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| 关 键 词： | k-ε模型 阶梯溢流坝 自由表面 消能效果 |
| 文章编号： | 1000-646X（2006）02-0068-04 |
| 收稿时间： | 2006-01-10 |
| 修稿时间： | 2006年1月10日 |
Numerical Simulation of Overflow and Energy Dissipation Analysis in Stepped Spillway |
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| CHEN Yong-ming,JI Qing-feng.Numerical Simulation of Overflow and Energy Dissipation Analysis in Stepped Spillway[J].Journal of Irrigation and Drainage,2006,25(2):68-71. |
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| Authors: | CHEN Yong-ming JI Qing-feng |
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| Abstract: | The turbulence model is applied to simulate the turbulent overflow of stepped spillway and non-stepped spillway,the VOF(Volume of Fluid) method is used to determine free surface.From numerical simulation,the velocity field of two spillway model are obtained,finally,the article compares the effect of energy dissipation between two spillway,and indicates that the stepped spillway is very well in energy dissipation. |
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| Keywords: | model stepped spillway free surface effect of energy dissipation |
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