Numerical Modeling Of The Formation And Transport Of Condensed Moisture In The Lower Pool Of A Hydroproject During The Operation Of Spring-board Spillways

摘要

A model of three-dimensional forced convection and transport of condensed moisture in the lower pools of hydroprojects is developed.rnThe existence of special spillway structures for passage of seasonal flood flows is probably one of the basic characteristic features of large-scale hydroprojects, which distinguish them from other industrial entities with operating conditions that are relatively uniform throughout the year. For a number of large-scale HPP, the pools, which are separated by a spillway dam with a height of the order of 100 m and more, are connected by surface spillways with specially designed lips/spring boards, which ensure rigorous splitting of the discharge flow; this is required to reduce scouring of the channel beyond the structure. Here, however, water dust (condensed moisture), which for unfavorable orography of the lower pool, will complicate both construction work, and also the operation of individual zones at the site of the powerhouse, forms, as a rule, in the fall-out region of the spillway jets.