Abstract:

In the pipeline transportation of liquid，the flow parameters are essential for management and operation. Based on the physical model of pipeline，flow parameters prediction was studied by means of simulation. And several kinds of boundary conditions were also investigated. The results from both theoretical analysis and simulation showed that the boundary condition would determine the waveform of the model outputs and influence the dynamics of the simulation. It can be concluded that using the pressure measurements at both upstream and downstream would have a relatively shorter setting time for the online simulation which would ensure quicker response when leak detection system based on real-time simulation was adopted. This can be used as an aid for the selection of boundary condition of the leak detection method based on real-time simulation.