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A Type Separate The Machine Turns The Drum Inside Flow The Field Of Research

Posted on:2010-06-16Degree:MasterType:Thesis
Country:ChinaCandidate:Z ZhangFull Text:PDF
GTID:2121360275980491Subject:Measuring and Testing Technology and Instruments
Abstract/Summary:PDF Full Text Request
Drip irrigation, sprinkler irrigation and other water-saving irrigation technology is one of the world the second time the center of the green revolution. Along the Yellow River irrigation area in the promotion of drip, sprinkler irrigation technology, must be resolved before the high water of the Yellow River silt problem, to prevent the emitter and the nozzle plug , Application Disc Separator sediment of the Yellow River water to clarify the separation of the Yellow River water to address the problem of high sediment; However, on Disc Separator design and characteristics of the study, especially on Disc Separator internal flow field of research, far less than the level of ordinary centrifuge research. In recent years, computer simulation of the rapid development of technology for the mechanical study of flow field provides an effective tool, take this technology to quickly research Disc Separator internal flow field to explore the law of the flow in the disk, and then to promote the separation of sediment-related research, design more suitable for the separation of the Yellow River sand cement separator disc, and for other fluid mechanical design and provide a reference flow field studies.Articles with fluid analysis software Fluent, For media to solid-liquid two-phase flow, based on software provided by a mixture of multi-phase flow model, Modified k-εturbulence equation, Disc Separator on the internal flow field numerical simulation to obtain the different parameters and different disk speed drum, the drum with the speed, pressure distribution and flow lines, By analyzing the velocity vector, pressure flow line image and the internal flow chart to study the flow field wall in the drum and disk combinations of the flow field under the influence of movement, Model based on different parameters to monitor the flow field from the exit of the clear liquid clear liquid flow and solid volume, the use of orthogonal experimental design with the optimal separation of the model parameters.In addition, articles based on the rapid development of the PIV flow field measurement techniques, the use of non-contact measurement design disc separator drum of the two-dimensional PIV flow field Speed measurement system, Selection of related equipment and software, analysis of flow field measurement drum of the feasibility of the real movement, in view of their special working conditions, designed to test methods, And used PIVview image processing software to verify fluid in image processing conditions, for the next step to establish three-dimensional PIV measurement system provides a reference test in the actual fluid.
Keywords/Search Tags:Disc Separator, Solid-liquid two-phase fluid, Numerical calculation, CFD, PIV
PDF Full Text Request
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