摘要
本文对H-H泥沙数学模型的计算原理和应用情况进行了简单的介绍,目的在于帮助泥沙工作者了解此模型的使用范围及所具备的功能。
In the condition of assumed boundaries to solve sediment diffusion equation, the formula of recovering saturation cofficient was derived and the relationship between sediment concentration and settling velocity was plotled by meseared data. Instead of settling velocity by sediment concen- tration, the formula of carrying sediment capacity fits the real case better. On this basis, the H-H mathematical sediment model was established by Zhang Qishun. In order to calculate silting and deposition in lake type reservoirs to extent to calcatate water level profile on the basis of model H-H1.1, the method to calculate sediment partitions of the main with the flood plain was developed in 1987.Using the model to simulate the Sanmenxia voir, Guanting, Tianqiao Hongshan and Cetian researvoirs gave content results discreetly even though those reservoirs have different types and different operations. Furthermore, the river-bed variation in the lower reaches of Yellow River is complex, but the results simulated the above river was satisfactory by using three coresponding width setted in the model H-H1.1.
出处
《泥沙研究》
CSCD
北大核心
1993年第1期60-67,共8页
Journal of Sediment Research
