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1. 四川大学水利水电学院
2. 中国水电顾问集团西北勘测设计研究院
3. 四川大学水力学与山区河流开发保护国家重点实验室
4. 四川大学 水力学与山区河流开发保护国家重点实验室四川,成都,610065
纸质出版日期:2009,
网络出版日期:2009-3-9,
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陈云良,张 林,张锦堂,张 亮,伍 超,王波.过水围堰溢洪的全域三维数值模拟[J].工程科学与技术,2009,41(6):28-35.
Chen Yun-Liang, ZHAN Lin, ZHAN Jin-tang, et al. 3-D Numerical Simulation of Overflow on Overtopped Cofferdams Universe[J]. Advanced Engineering Sciences, 2009,41(6):28-35.
中文摘要: 过水围堰由于涉及范围广、边界复杂,溢洪的全域三维数值模拟还较为欠缺。为实现物理模型与数值计算的互补,采用紊流模型对上、下游过水围堰及基坑,包括部分河道进行了三维数值模拟。给出典型工况围堰的泄流能力,消能平台水气两相流特性,以及三维流场和压力分布。上游水位与围堰泄流量的关系,计算与实测进行了对比分析,大洪水工况时二者吻合较好,小洪水工况时有一定偏差。研究表明:顺水流方向结构化网格的生成,使模拟的过堰水流与实际情况更为相符。
Abstract:The research report about 3-D numerical simulation of overflow on overtopped cofferdams is very deficient because of the wide flow range and the complex boundary. The turbulent model was applied for the complementation between physical model test and numerical simulation. The overflows on the upper and lower cofferdams
the foundation pit
and the riverway were numerically simulated. The spillway capacity of the overtopped cofferdams was calculated under the typical flood conditions. The characteristics of aerated flow on the energy dissipation flatforms
the 3-D flow fields
and the pressure distributions were described. The results showed that the calculated relationships between the upstream water level and the overflow discharge of upper cofferdam agreed well with the model test results under the major flood conditions
and deviated from the model test results under the minor flood conditions. It is useful that the the structured mesh lines are generated generally according to the flow direction to simulate practical overflow well.
过水围堰三维数值模拟结构化网格
overtopped cofferdam3-D numerical simulationstructured mesh
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