松涛水库水温数值模拟研究

为研究热带地区湖泊型水库水温分布规律,以海南省松涛水库为研究对象,采用垂向一维水温模型——DYRESM模拟水温分布,探究该水库水温结构及垂向水温年内演变规律。经分析可知:松涛水库水温呈显著的稳定分层结构,水温垂向分布具有明显的季节性;6、7月平均水温最高,2月最低,水深40 m处至库底水体水温不随时间改变,常年保持在19℃左右;全年内,水库表层水温均高于入流水温和当地气温;入库流量猛增时会导致水库水温出现双温跃层结构。

Study on Numerical Simulation of Water Temperature in Songtao Reservoir

In order to study the distribution of water temperature in lake-type reservoirs in tropical region,the vertical one-dimensional water temperature model DYRESM is used to simulate the water temperature distribution in Songtao Reservoir in Hainan Province,and explore the water temperature structure of reservoir and the evolution of vertical water temperature in a year.According to the analysis,the water temperature of Songtao Reservoir is obviously stable and stratified,and the vertical distribution of water temperature has obvious seasonality.The average water temperature in June and July is the highest,and in February is the lowest.The water temperature from the depth of 40 m to the bottom of the reservoir does not change with time by remaining at about 19℃all year round.Throughout a year,the surface water temperature of the reservoir is higher than the temperature of air and inflow water.When the inflow rate of reservoir increases dramatically,the reservoir water temperature will have a double thermocline structure.