Free-surface Vortex Identification Method And Experimental Research In Continuous Casting Slag-tapping Water Model

Chapter one:Free-surface vortex recognition have important implications for water conservancy construction safety, industrial production quality and efficiency. Vortex iden-tification technique is hard to achieve and put into application because of complexity. So a free-surface vortex image recognition method was proposed, and the vortex recognition mechanism, key technology and its application in the continuous casting slag detection were in-depth investigated.Chapter two:The program of the free-surface vortex identification method and struc-tures of identification experiment platform, the mechanism of vortex formation was full-filled. It’s provided us a good research conditions to collect vortex fluid information for identification.Chapter three:Using burgers vortex-based theoretical model to analyze free-surface vortex,we got the physical characteristics, the law of motion and the structure of vortex and find out mapping relationship between two-dimensional image information and fluid information in space. Also we proposed a definition of a vortex and how to describe it which provided the basis for image recognition of the vortex.Chapter four:Analysizing free-surface vortex features in two-dimensional image, we realized the vortex image preprocessing,, feature analysis and feature recognition of the vortex. The experimental results showed that the free surface vortex pattern recognition method was stable and effective.Chapter five:To present a free-surface vortex identification method which was applied to the solution of ladle slag detection. Slag detection system that based on the free-surface vortex identification was designed. Free-surface vortex identification method was applied to the vortex detection and its characteristic parameters extraction in continuous casting process.Design a vortex characteristics classifier based on the artificial neural network, which could correctly classify vortex state to fulfiil slag detection. According to the fluid similarity theory, we built a ladle taping model experiment platform, and achieved slag de-tection application software platform with Visual C++integrated development environment and COM-based streaming media processing package.The experimental results showed that the free surface vortex identification method and its application was feasible and effective.Chapter six:Summarizing innovations and achievements of research, we described unresolved technical problems and looked forward to future research.