Investigation Of Clear Water Field Of A Turbid Water Hydraulic Power Separation Equipment By Physical Model

A new device which can separate the clear water from the turbid water by hydraulic power was invented by the term whom devoted into the hydraulic teaching and research section of Hydraulic and civil Engineering College of Xinjiang Agriculture University .This device only depends dynamic turbid's hydraulic power of itself to obtain the clear water ,and the separated sediment are all get rid of by itself s hydraulic power, without any other power and chemicals input, due to it's simple structure, low cost and low running cost, the device changed tradition city water which depend add chemicals to dispose sediment, greatly improved the water quality, bring benefit to human's health and the surrounding which around us. It has perspective to resolve the diflBcult in people's living water and the advance skill's popularize and apply in spray irrigation and drop irrigation in the area of Xinjiang , especially to the people whom living dispersed along the more sediment river.Through physical model experiment, a series of investigation of clear water field in this device has been made by PIV, with PIV's special software Insight3.3 and Tecplot image software to deal with and analysis the experiment data. Then, according to the measured data, and distributions of the flow's velocity vector field, flow line, velocity component strain variability and vorticity field in the device are presented, and the distribution law of the clear water field inside the device can be obtained, which provide a scientific consult and basis to ascertain the device 's mechanization of water and sediment separation and flow field numerical modeling. According to the physical model experiment research, combine the analysis result of microcosmic and macroscopic, the distribution law of the clear water field inside the device can be obtained:(1) A clear eddy was founded along the water depth in the slightly deviate center of the device. Combine the cartoon demonstrate of Tecplot software, we found the deviate eddy band was exit in the device's center and the eddy has the same direction with the fluid.(2)The fluid inside the device made a rotation move, the energy equation of the rotation fluid in the device was inferred.(3)The distribution law of tangential velocity was: the center of eddy belong to enforce eddy move and the distribution law of velocity and pressure obey the law of forced eddy move which should be followed as : u_θ= cr~n, ( n >0> r >1) . Then ,a rotary fluid was formed which the type was the center fluid move...