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自泄水建筑物下泄的高速水流,在消能过程中水面往往伴随有迷漫的水雾;特别是在挑流消能的情况下,高速水流的雾化现象更为显著。在实际工程中,由于射流雾化而影响枢纽汛期安全运行的实例确实存在。随着我国水电资源的不断开发,将愈来愈多地在高山狭谷区修建高水头枢纽,挑流消能也将日益广泛地被采用,因而射流雾化问题会更加突出。为此,本文拟结合工程实例对此问题进行阐述,希望进一步引起水电工程界的重视。
The high-speed water discharged from the water-discharge structures is often accompanied by water mist in the process of energy dissipation. Especially in the case of pick-flow energy dissipation, atomization of high-speed water flow is more pronounced. In practical engineering, there are some examples that affect the safe operation of the flood season in the hub due to the atomization of the jet. With the continuous development of hydropower resources in our country, more and more high-water hubs will be constructed in the valleys of high mountains, and the energy dissipation of backflow will also be increasingly adopted. Therefore, the problem of jet atomization will be more prominent. To this end, this article intends to combine engineering examples to elaborate on this issue, hoping to further arouse the attention of hydropower engineering community.