摘要
建立了一般曲线坐标系下的平面二维水沙数学模型,并运用长江武汉河段实测水沙数据对模型进行系统的率定与验证;模拟了不同流量级下该河段采砂后水位、流速变化规律。进一步选取了典型水沙系列年,对采砂后河段冲淤变化及采区内泥沙回淤率进行了预测。模型成果为本河段采砂的可行性及采砂规模控制提供了较科学的参考依据。
In this paper,a 2-D horizontal model with generalized curvilinear coordinate is developed to simulate flow and sediment tramsport.The model is calibrated and verfied by field data in the Wuhan reach of the Yangtze River.The variation features of water level and flow are simulated by using different discharges.The model is also used to forecast the silt change of the reach and the sediment re-silt efficiency in mining areas after sand mining through selecting typical flow and sediment series.The results can providea scientific reference for the feasibility and the scale of sand mining.
出处
《泥沙研究》
CSCD
北大核心
2008年第2期69-76,共8页
Journal of Sediment Research
关键词
采砂
一般曲线
平面二维水沙数学模型
率定与验证
泥沙回淤
sand mining
generalized curvilinear coordinate
2-D horizontal flow and sediment model
calibration and verification
sediment re-silt
