| 顺直微弯型分汊河道水流的紊动特性试验研究 |
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| 引用本文： | 顾莉,华祖林,褚克坚,刘晓东.顺直微弯型分汊河道水流的紊动特性试验研究[J].河海大学学报(自然科学版),2011,39(5):475-481. |
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| 作者姓名： | 顾莉 华祖林 褚克坚 刘晓东 |
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| 作者单位： | 河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098;河海大学环境学院,江苏南京210098 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)(2008CB418202); 国家自然科学基金(51009048,50979026); 中央高校基本科研业务费专项(2009B16714,2009B17814); 河海大学自然科学基金(2009422611); 江苏省六大人才高峰计划(08-C); 国家水体污染控制与治理科技重大专项(2009ZX07103-006) |
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| 摘 要： | 对顺直微弯型分汊河道的水流紊动特性进行了试验研究,构建了分汊河道的物理模型试验系统,探究了在不同汊道宽度比和上游来流量条件下,水流在分汊河道沿程不同断面的紊动能分布特征.试验结果表明:在平面上,水流紊动最为剧烈的区域发生在支汊进口段凹岸的回流区与凸岸的高流速区之间的过渡地带,表、中、底3层的高紊动区的强度和范围以中层为...
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| 关 键 词： | 分汊河道 紊动能 支汊宽度 上游流量 |
| 修稿时间： | 2011/11/10 0:00:00 |
Experimental study on turbulence characteristics of flow in straight or slightly curved braided rivers |
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| GU Li,HUA Zu-lin,CHU Ke-jian,LIU Xiao-dong.Experimental study on turbulence characteristics of flow in straight or slightly curved braided rivers[J].Journal of Hohai University (Natural Sciences ),2011,39(5):475-481. |
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| Authors: | GU Li HUA Zu-lin CHU Ke-jian LIU Xiao-dong |
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| Institution: | GU Li1,2,HUA Zu-lin1,CHU Ke-jian1,LIU Xiao-dong1,2(1.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes,Ministry of Education,Hohai University,Nanjing 210098,China,2.College of Environment,China) |
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| Abstract: | The physical model experiment system was developed to study the turbulence characteristics of flow in the straight or slightly curved braided rivers.The turbulent kinetic energy distributions of different cross-sections of braided rivers were studied under different anabranch widths and upstream flow rates.The experimental results show that the turbulent intensity peaks in the planes occur at the transition zone between the recirculation zone near the concave bank and the high-velocity flow zone near the co... |
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| Keywords: | braided rivers turbulent kinetic energy anabranch width upstream flow rate |
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