Study on Simulations of Hydraulic Transient as a Result of Pipeline Leakage for the Leaking Point Locating

In this paper the hydraulic transient property of pipeline flow is simulated and analyzed in order to detect the leakage location precisely. Based on the transient equation of boundary and the surge differential equation, the hydraulic transient mathematical model of leaking is established for the unsteady flow. Analysis process and calculation procedure based on differential methods of characteristic are developed in accordance with hydraulic transient theory. The procedure is written by Visual Basic language. The variety of pressure and flow rate of the pump exit and the leak point is calculated. Corresponding variation curves are drawn. By study and analyze the simulated data of leaking, the change regulations of pressure and flow rate are obtained. The mathematical model and computing method can provide an effective way for study of the leaking point locating.