No abstract

In this work a transient, isothermal, mixture model for one and two fluid flows through pipes is presented. The model is formed by mass, momentum and energy conservation equations, which include leak term. The model is solved numerically using the finite difference technique and allows to simulate pressure and flow rate in steady and transient state. The hydraulic grade line is experimentally obtained and compared against predictions from the model. The result shows a good agreement with experimental data. It was found that (1) leaks induce inlet pressure changes, which are directly proportional to the leak location and magnitude; and (2) the outlet flow rate diminishes directly with the leak.