| 汾河入黄口水流特性与污染物扩散模拟 |
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| 引用本文： | 李娟,冯民权,刘淑文. 汾河入黄口水流特性与污染物扩散模拟[J]. 水土保持通报, 2014, 0(6): 189-192 |
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| 作者姓名： | 李娟 冯民权 刘淑文 |
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| 作者单位： | 西安理工大学 陕西省西北旱区生态水利工程重点实验室, 陕西 西安 710048;山西中部引黄水务开发有限公司, 山西 太原 030012;西安理工大学 陕西省西北旱区生态水利工程重点实验室, 陕西 西安 710048;山西水利职业技术学院 水利工程系, 山西 运城 044004 |
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| 基金项目： | 高等学校博士学科点专项科研基金博导类项目"基于随机游动理论的污染物迁移扩散规律研究"(20126118110015);中央财政支持地方高校发展专项特色重点学科项目(106-00X101;106-5X1205) |
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| 摘 要： | 为探讨交汇口污染物入河后的迁移转化规律,对汾河入黄口水流特性与污染带(化学需氧量,COD)分布进行了模拟。根据黄淤59-60断面之间实测高程值,利用插值法补充地形,并采用非结构网格划分地形。建立二维水动力水质模型,采用交替方向隐式迭代法(ADI)对水流连续性及动量守恒方程进行积分。结果表明,模型验证结果与实测资料吻合较好,用此模型对50%,75%,90%频率年汾河入黄口处进行模拟,得到了入黄口处的流速分布和污染物浓度分布结果。随着水文频率年的增大,形成的河口滩面积减小,且分别经过2.35,3.00,4.20 km的距离后COD值才能达标。
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| 关 键 词： | 汾河入黄口 非结构网格 水动力水质模型 污染带分布 |
| 收稿时间： | 2013-05-23 |
| 修稿时间： | 2013-07-20 |
Simulation on Water Flow Characteristics and Pollutant Diffusion at Estuary of Fenhe River into Yellow River |
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| LI Juan,FENG Min-quan and LIU Shu-wen. Simulation on Water Flow Characteristics and Pollutant Diffusion at Estuary of Fenhe River into Yellow River[J]. Bulletin of Soil and Water Conservation, 2014, 0(6): 189-192 |
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| Authors: | LI Juan FENG Min-quan LIU Shu-wen |
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| Affiliation: | State Key Laboratory of Eco-Hydraulic Engineering in Shaanxi Province, Xi'an University of Technology, Xi'an, Shaanxi 710048, China;The Central Shanxi Province Yellow River Water Development Co., Ltd, Taiyuan, Shanxi 030012, China;State Key Laboratory of Eco-Hydraulic Engineering in Shaanxi Province, Xi'an University of Technology, Xi'an, Shaanxi 710048, China;Department of Water Conservancy Engineering, Shanxi Conservancy Technical College, Yuncheng, Shanxi 044004, China |
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| Abstract: | Water flow characteristics and distribution of polluted belt of chemical oxygen demand(COD) at estuary of Fenhe River into the Yellow River were simulated to discuss its migration and transformation law. According to the measured elevation values of section 59-60, interpolation method was used to supplement the terrain data and unstructured grid was used to divide the terrain. A two-dimensional hydrodynamic and water quality model was established, and alternating direction implicit method(ADI) was adopted to give an integral of the flow's continuity and momentum conservation equation. The result showed a high match between the simulation and the actual measurement. In addition, the velocity distribution and contaminant concentration distribution were given by simulation of COD in 50%, 75%, 90% hydrologic year types in the estuary of Fenhe River into the Yellow River. Moreover, as the increase of hydrologic frequency years, the area of river mouth beach formed was reduced, and the COD value reached the standard over the distance of 2.35, 3.00, 4.20 km. |
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| Keywords: | estuary of Fenhe River into Yellow River unstructured grid hydrodynamic model for water quality distribution of polluted belt |
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