| 汉江兴隆弯曲宽浅河段不同水沙条件下冲淤演变的数值模拟研究 |
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| 引用本文： | 吴娱,吴亚敏,陈立.汉江兴隆弯曲宽浅河段不同水沙条件下冲淤演变的数值模拟研究[J].广东水利水电,2015(9):50-53. |
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| 作者姓名： | 吴娱 吴亚敏 陈立 |
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| 作者单位： | 广东省水利水电科学研究院,广东省水动力学应用研究重点实验室,广东 广州 510635,中水珠江规划勘测设计有限公司,广东 广州 510610,武汉大学水资源与水电工程科学国家重点实验室,湖北 武汉 430072 |
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| 摘 要： | 以汉江兴隆至两家湾这一典型的弯曲宽浅河段为例,利用2005年实测河道地形与水流泥沙资料,采用平面二维水流泥沙数学模型计算模拟了河段内的水流泥沙运动,分析弯曲宽浅河段在不同水沙条件下的河床冲淤变化。结果表明:各典型年水沙条件下,汉江兴隆弯曲宽浅河段整体发生冲刷,航道问题仍非常突出,应在该河段修建整治工程进行整治。
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| 关 键 词： | 弯曲宽浅 水流泥沙运动 河床冲淤 汉江兴隆至两家湾河段 |
| 收稿时间： | 2015/3/20 0:00:00 |
| 修稿时间： | 2015/3/20 0:00:00 |
Numerical Simulation Study on Evolution of Hanjiang Xinglong Wide-shallow Meandering Reach under Different Sediment and Water Inflow Conditions |
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| WU Yu,WU Yamin and CHEN Li.Numerical Simulation Study on Evolution of Hanjiang Xinglong Wide-shallow Meandering Reach under Different Sediment and Water Inflow Conditions[J].Guangdong Water Resources and Hydropower,2015(9):50-53. |
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| Authors: | WU Yu WU Yamin and CHEN Li |
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| Affiliation: | Guangdong Research Institute of Water Resources and Hydropower, Hydrodynamic Research Key Lab of Guangdong Province,Guangzhou 510635, China,China Water Resources Pearl River Planning Surveying and Designing Co.Ltd,Guangzhou 510610, China and State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
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| Abstract: | Wide-shallow meandering is characterized by not only general features of a meandering river but also its unique characteristics. Due to both vertical and transverse erosion occur in scour, channel regulation becomes even harder. In this paper the reach between Hanjiang Xinglong and Liangjiawan is numerically investigated by using a depth-averaged 2D model for sediment-laden flow, as compared to field data measured in 2005.The evolving characteristics of this reach in response to different sediment and water inflow conditions are analyzed. The results show that, Hanjiang Xinglong wide-shallow meandering reach scours globally and channel problems are still outstanding. Channel regulation projects should be built in this reach. |
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