Investigation on Cavitation Erosion Risk Discrimination and Classification Method
Cavitation is a phenomenon in which hydraulic components are damaged by cavitation impact.It not only affects the hydrodynamic performance of ship hydraulic components,but also threatens the safety of local structures.The erosion risk of cavitation refers to the possibility of cavitation erosion occurring,mainly reflected in the destructive effect of cavitation flow.At present,the main control method for cavitation erosion is to reduce the risk of cavitation erosion through optimization measures during the design stage,but the prerequisite is to accurately evaluate the cavitation erosion risk of different designs.However,due to multiple factors such as research tools and physical mechanisms,the assessment method for cavitation erosion risk in China is relatively limited,and the method is strongly related to the experience of the researchers,which greatly affects the reliability of the evaluation results.In this article,a comprehensive evaluation and classification system for cavitation erosion risk is constructed based on high-speed photography,pressure pulsation and painting results.It can provide more effective support for the identification of cavitation erosion risk.
Risk of cavitation erosionDiscriminationClassification
NETL
NSTL
万方数据
