水利水电科技进展Issue(4)：18-21,4.DOI:10.3880/j.issn.10067647.2013.04.005
二维非恒定流数学模型在赣江河流治导线研究中的应用
Application of a two-dimensional unsteady flow model in research of regulation line of Gan River
摘要
Abstract
In order to provide a scientific basis for the study on regulation line of Gan River, taken the reach from Ji'an hydrology station in the upstream of Gan River to dam site of Xia River as an example, flood characteristics including water level, water depth, flow field, and flow hydrodynamic axis were studied by using a two-dimensional unsteady flow model. The flood submerged range was gained from calculation results by this model, and then the river band scoured reaches were determined through the river band morphology and the bending radius of flow hydrodynamic axis. Research results show that:water-level variations of the study reach gradually increases from upstream to downstream, the water-level variations near the dam site of Xia River is about 2 m, and the water-level variations of the Ji'an hydrology station is about 1.4 m. The peak flow of each section sequentially appears from upstream to downstream, and the time for the maximum peak flow occurring between upstream and downstream is 10 h. Restricted by both sides of riverbank, massif, and highland, the flood of the reach is almost retrained in the watercourse, and the flood submerged range is relatively board in some flat low-lying region. According to the above research results, the position and range of the seven river band scoured reaches were determined.关键词
治导线/二维非恒定流数学模型/水流动力轴线/迎流顶冲河段/赣江Key words
regulation line/two-dimensional unsteady flow model/flow hydrodynamic axis/river band scoured reach/Gan River分类
建筑与水利引用本文复制引用
陈龙,李友辉,李明辉,罗蔚..二维非恒定流数学模型在赣江河流治导线研究中的应用[J].水利水电科技进展,2013,(4):18-21,4.基金项目
江西省水利厅科技项目(KT201019) （KT201019）
水利部公益性行业科研专项(201101041) （201101041）
