Integrated simulation of urban wastewater systems - How many rainfall data do we need?

Abstract:

Rainfall data constitute an important, if not the most important, input for simulations of the urban wastewater system. Two main approaches to simulation are known and applied in practice continuous simulation of a long time series, and simulation of just a selected part of the input (event-based simulation). Since in particular integrated simulation places considerable demands on simulation time, ways are sought to reduce such demands. Significant reduction can be achieved in the analysis of flows or combined sewer overflow discharges. When simulating the entire urban wastewater system, also considering water quality processes, particular care has to be taken when selecting events. For the example given, selective simulation (of nine events rather than the complete time series) gave similar results in shorter time, adding, however, some uncertainty. Therefore, the selection of input rain events may constitute an option for reducing simulation time, which, however, has to be applied with extreme caution.

Año de publicación:

2002

Keywords:

Fuente:

scopus