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根据大量实测水库水温资料分析可知,水库水温等温面基本上与水面平行,因而可由热传导原理足够近似地建立水库水温变化的一维数学模型。考虑对流、风掺和泥沙异重流的影响后,由所提出理论按隐式解法,可求解水库水温的分布以及与时间变化的影响。根据编制的计算程序,验算了梅山水库和乌江渡水库的水温变化,计算结果与实测值比较中分吻合。
According to the analysis of a large number of measured reservoir water temperature data, we can see that the isothermal water surface temperature of the reservoir is basically parallel to the water surface. Therefore, a one-dimensional mathematical model of the reservoir water temperature can be established approximately enough by the principle of heat conduction. Considering the effects of convection, wind mixing and sediment gravity flow, the implied solution can be used to solve the distribution of reservoir water temperature and its influence with time. According to the compiled calculation program, the water temperature changes of Meishan Reservoir and Wujiangdu Reservoir were checked. The calculated results are in agreement with the measured values.