Modular interdependency analysis for water distribution systems

Complexity in water distribution systems (WDSs) poses a challenge for analysis and management of the systems. To reduce complexity, recent development complex network science provides system decomposition technique that converts WDS with large number components into simple set interconnected modules. Each module is subsystem stronger internal connections than external connections. Thus far, topological features modular structure have been extensively studied but not behavioural features, e.g. hydraulic interdependencies among Therefore, this paper aims to quantitatively measure graphically visualize interdependency WDSs, which helps understanding complexity WDSs thus various analyses, such as pipe maintenance, model calibration, rehabilitation, District Metered Areas planning. Specifically, study first identifies WDS's then measures how changes state one (i.e. any single failure or perturbed demand within each module) affect another module. Modular are summarized an matrix visualized by digraph. Four real-world analysed, three them shows low most modules there only few critical whose status will substantially other Hence, highly topologies may result strong interdependency, fact simplifies several practical applications discussed paper.