近几年来,根据工程实践运用,认为掺气减蚀设施是防止空蚀破坏较为经济,行之有效的办法,当前国内外已作为一项新技术推广应用.本文就有关问题作一综述. 一、掺气减蚀设施的水力特性高速水流掺气来源大体可分三种: (1)水中含气;(2)水流自然掺气;(3)人工掺气.高速水流掺气现象发生在挑坎或跌坎水流分离点的下游,在两相流交 In recent years, according to engineering practices, it is considered that aerated erosion reduction facilities are more economical and effective ways to prevent cavitation erosion and have been popularized and applied as a new technology at home and abroad. (1) water-containing gas in the water; (2) natural aeration of water; (3) artificial aeration. The phenomenon of high-speed water aeration occurs in the Hom or ridge flow downstream of the separation point, the two-phase flow