垂向一维水温模型在东江水库中的应用研究

发布时间：2018-07-02 21:51

本文选题：垂向一维水温模型 + 湖泊型水库　；参考：《人民长江》2017年10期

【摘要】：针对现有垂向一维水温模型研究中缺少对模型关键参数和边界条件敏感性的系统分析,以东江水库为例,开展了垂向一维模型在湖泊型水库水温模拟中的适用性研究。研究结果表明:东江水库库区斜温层变化主要受气象条件控制,年内下泄水温过程稳定,模型能够较好模拟出垂向水温结构演变及下泄水温过程特征,与实测结果吻合良好;表层水温计算对水气热通量参数较为敏感,垂向扩散系数是影响垂向水温结构模拟的关键参数;同时,不同精度系列的气象过程不改变水库的整体热量收支,对水温结构基本无影响。
[Abstract]:In view of the lack of systematic analysis on the sensitivity of the key parameters and boundary conditions to the existing vertical one-dimensional water temperature model, the applicability of the vertical one-dimensional model in the simulation of the water temperature of the lake reservoir is studied in the Dongjiang Reservoir as an example. The results show that the variation of oblique temperature layer in Dongjiang Reservoir area is mainly controlled by meteorological conditions, and the temperature process of drainage water is stable in the year. The model can well simulate the evolution of vertical water temperature structure and the characteristics of the process of drainage temperature, which is in good agreement with the measured results. The calculation of surface water temperature is sensitive to the parameters of water vapor and heat flux, the vertical diffusion coefficient is the key parameter affecting the simulation of vertical water temperature structure, and the meteorological processes of different precision series do not change the overall heat budget of the reservoir. It has no effect on the structure of water temperature.
【作者单位】：四川大学水力学与山区河流开发保护国家重点实验室;
【分类号】：TV697.21

【相似文献】