水库垂向二维水质分布研究

在水库大水体研究中引入Ｋε模式，将水动力方程与水温水质方程耦合建模，合理考虑了水流运动与水温水质分布的相互影响．水质模型中描述了污染物运动变化的分子扩散、湍流扩散及弥散．模型解法上采用具有自动迎风效应的混合有限分析五点格式．在红枫湖垂直剖面二维ＣＯＤ分布研究中取得良好效果．

The vertical two dimensional water quality model is developed by coupling hydrodynamic equations with water temperature and water quality equations in which K ε model is applied to the study of large water body in reservoirs. The interactions between water flow, water temperature and water quality are reasonably considered. In the water quality model, molecule diffusion and turbulent diffusion as well as dispersion of pollution in the reservoir are expressed in detail. The advanced finite analytic numerical method with five grid points is used to solve the model′s equations. The application of the model to Hongfeng Lake in Guizhou Province shows that the calculated COD distribution are very close to the measured data.