中文摘要：

抽水融冰可以有效解决寒区引水渠道冬季运行冰害问题,为了认识不同边界条件下抽水融冰过程中水温的变化规律,为实际工程的设计和管理等提供技术依据,本文以玛纳斯河流域红山嘴电站的引水渠道为研究对象,采用FLUENT软件建立了引水渠道和抽水融冰井的数学模型,并以此为模型工具对不同研究工况下引水渠沿程水温进行了数值模拟分析,并将计算结果与实测数据进行比较验证,结果显示：混合水温和井水流量、井水水温、渠道原始水温均呈正相关关系,渠道原始流量和混合水温呈负相关关系。根据上述模拟结果,在实际工程中采取增加井水流量可更容易、更有效地解决渠道冰害问题。

英文摘要：

The ice problem of diversion channel in cold area can be solved by the technology of pumping well water to melt ice. The purpose of this study is to analysis the variation law of water temperature during the process of pumping well water to melt ice under different boundary conditions, which can provide technical basis for design and management of practical engineering. Based on the actual situation of the diversion channel of Hongshanzui power station in Manas River, a diversion channel turbulence mathematical model was proposed using FLUENT, and the calculation results were compared with the measured data. Thus, the change process of water temperature for diversion channel was calculated under different research conditions. The results indicated that there were positive correlation relationships between the mixed water temperature and the discharge of well water, the temperatures of well water and channel water. However, the relationship between the mixed water temperature and the discharge of channel was negative correlation. Therefore, it is easy to solve the channel ice damage problem by increasing the discharge of well water in the actual project.