A PIV measuring method of flow in ventilated super-cavitation

Research on measuring method of flow in ventilated super-cavitation was conducted. By choosing the hollow glass spheres as the seeding particles, using of fluidized bed as the seeding generator and designing a reasonable ventilated pipeline, the measurement of flow in ventilated super-cavitation was achieved on the base of 2D PIV system, clear images of the seeding particles in super-cavitating flow were observed, and the images were analyzed to acquire the speed and vorticity fields. The experiment results indicate that the flow in ventilated super-cavitation can be measured by the using of PIV technology. The test result can reveal the structure of ventilated super-cavitation and can provide the references for the further studies of cavitation flow. This measuring method is worthy of reference to other correlative research.