| Popis: |
To develop an efficient monitoring system for looped piped water systems, an adequate model for evaluating water quality is necessary. Several literature studies have used advective-reactive models to analyse water quality, neglecting diffusive transport, which is claimed to be irrelevant in turbulent flows. Although this may be true in simple systems such as linear transport pipes, the presence of laminar flows in looped systems may be significant, especially at night and in the peripheral parts of the network. The present paper compares the current EPANET advective model, an updated version of EPANET in which diffusion-dispersion equations were implemented and a newly developed diffusive-dispersive model under dynamic conditions that uses the random walk method. The results demonstrated the inadequacy of the advective model in reproducing data from the experimental campaign. Additionally, a significant difference in sensor positioning was found based on the numerical model used. |
