ABSTRACT
This chapter deals with modelling of steady–state and transient hydraulics in pressurized pipe networks. It also deals with the two configurations are: pressurized, quasi-steady flow in networks, to be simulated over large time scales; and fast transients, the typical time scale of which is, at most, a few seconds. The numerical solution of the vector equation may fail if a number of conditions are not met during model building. Some commercially available packages may be sufficiently well programmed to check for mistakes prior to starting the calculation procedures. The modelling of the prototype closed-conduit water flow in any duct can also be reproduced on any scale model by using a different fluid. The geometric and mechanical characteristics of the pipes, and the combination of the initial and boundary conditions, the maximum and/or minimum values of the pressure and discharge may be reached after one or several reflections of the pressure transient within the network.
