Filling and emptying processes are common maneuvers while operating, controlling and
managing water pipeline systems. Currently, these operations are executed following …

This study presents the results from detailed experiments of the two-phase pressurized flow
behavior during the rapid filling of a large-scale pipeline. The physical scale of this …

The intermittent water supply (IWS) of water distribution systems is a common practice
caused by the imbalance between available water resources and customers' demands …

The occurrence of sub-atmospheric pressure in the drainage of pipelines containing an air
pocket has been known as a major cause of several serious problems. Accordingly, some …

This work considers the behaviour of air inside pipes when the air is expelled through air
valves. Generally, the air shows isothermal behaviour. Nevertheless, when the transient is …

This effort investigates advancing cavitation modeling relevant to computational fluid
dynamics (CFD) through two strategies. The first aims to reformulate the cavitation models …

This paper investigates the effects of an intermittent supply in a large branched set-up. The
general behavior of the filling phenomena is exemplified with reference to a typical test …

The filling process in water pipelines produces pressure surges caused by the compression
of air pockets. In this sense, air valves should be appropriately designed to expel sufficient …

This paper presents an extension of the Preissmann slot concept for the modeling of highly
transient two-dimensional (2D) mixed flows. The classic conservative formulation of the 2D …

The numerical simulation of transient mixed flows requires suitable mathematical models
that must be validated by comparison with experimental data. For this reason, a simple …