Optimization design of pipe network adjustment based on Kirchhoff and virtual simulation
In order to solve the problem of adjustment accuracy and visualization of pipe network,based on Kirchhoff's law,three matrices,"connection matrix","loop matrix"and"traceability matrix",are constructed for pipe network adjustment,and the goal is to minimize the absolute sum of the closure errors of each ring for planning and solving,so as to obtain high-precision adjustment results and complete the optimization design of pipe network adjustment.The mathematical model and constraint conditions of adjustment were visually pro-grammed on the programming platform of Labview,and a virtual simulation software for hydraulic calculation of the ring water supply network was developed to visually display the adjustment results and the pressure at the nodes.The simulation results show that the sum of the absolute value of the four-ring closing difference of the pipe network adjustment is 2.041×10-10m,indicating that the closing difference is controlled within the accu-racy range,and is far less than the accuracy requirements of the pipe network adjustment.The actual working condition simulation shows that the use of virtual simulation technology to simulate pipe network adjustment and even accident check has the characteristics of high efficiency,high precision and intuitive,which can greatly improve the calculation efficiency and accuracy.
loop pipe networkadjustment calculation of pipe networkoptimal designvirtual simulationKirchhoff's law
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