水轮机汽蚀破坏是水电站运行中普遍存在的问题之一,而在多泥砂河流上修建的水电站,由于泥砂的存在,水轮机要受到汽蚀和泥砂磨损的联合作用,使汽蚀和泥砂磨损相互影响,形成恶性循环,更促进水轮机过流部件被侵蚀破坏的发展。故对水轮机汽蚀和泥砂磨损以及汽蚀与泥砂磨损的相互影响关系等问题的研究,就愈来愈被人们所注意。过去国内外学者曾进行过不少这方面的研究工作,也取得了不少成果,但至今仍是 The cavitation damage of hydro-turbine is one of the common problems in the operation of hydropower stations. However, due to the presence of sediment, the hydro-turbine is subject to the joint action of cavitation and sand abrasion, which affects the interaction between cavitation and sand abrasion , Forming a vicious cycle, but also to promote the development of the turbine over-current components are eroded and destroyed. Therefore, the research on the relationship between the cavitation and sand abrasion of the turbine and the interaction between cavitation erosion and sand abrasion is getting more and more attention. In the past, domestic and foreign scholars conducted many researches in this field and made many achievements, but so far they are still