Modelling external intrusion into water distribution systems

This article describes the representation of pathogen intrusion in waterdistribution systems through experimental and numerical modelling, in order to study one ofthe phenomena which can cause contamination of drinking water through leakage inside thenetworks. This situation can happen when negative pressure conditions are achieved in thesystem, allowing the entrance of water around a leak and thus generating pathogenintrusion, causing a problem of water quality. The modelling process is based onexperimental and computational procedures. On the other hand, we present an analysis ofthe behaviour of intrusion considering the transportation of pollutant again by means ofexperimental measurements and computational simulations.