Abstract
Based on the discussion of the multi-level intake application status of high dam reservoir, this paper takes the Jinping-I hydropower project reservoir in the Yalong River as an example, which is shaped by the highest 305 m high arch dam, and carries out the forecasting research on the reservoir temperature by numerical simulation and physical model testing. This paper studies the intake effect of withdrawing the surface warm water by the stoplog gates inlets and verifies the reliability of the mathematical model by comparative analysis. The results show that for a high dam hydropower station, taking the appropriate multi-level intake measure can withdraw the surface warm water in the spawning season and provide a favorable environment for the fish reproduction. Innovative technical ideas and implementation scheme are adopted in this research. It can provide technical reference for the solutions of similar problems in the future and it also has important engineering significance on the research of water temperature in large deep reservoirs.
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