Abstract:The research progress for the mechanism of cavitation in hydraulic machinery,numerical simulation and experiment are summarized.The relationships among the three investigation methods are discussed and the focus are the cavitation model theory and visual experiment.At last,the development trends of cavitation are summarized as the indepth improvement of numerical simulation,the applications of visual technology,and the development of online monitoring system.And the mechanism of cavitation and erosion will be the key emphasis of study in the future.
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