Graph-based approach for generating virtual water distribution systems in the software VIBe

摘要

Application of virtual case studies (VCS) is a well established technique in environmentalnengineering to test measures, approaches, models or software. However, preparation of VCS fornan infrastructure network is a tedious task. In literature, approaches can be found which generatenvery simplified VCS, which are only partly comparable with real world case studies. VCS which arenmore comparable with real world case studies can be generated with the software VIBe (VirtualnInfrastructure Benchmarking). With VIBe, a methodology for algorithmic generation of VCS withnvarying spatially distributed boundary conditions was presented. Therein the investigatedninfrastructure is constructed accordingly to the state-of-the-art design rules meeting thenrequirements of the generated virtual urban environment. In this paper the module for thengeneration of water distribution systems (WDS) is presented. The generated WDS are set inncontext with data from real world WDS and systematically investigated. A set of 75,000 virtualnWDS with varying properties is characterized and stochastically analysed in order to identifynsystem coherences e.g. impact of mesh degree on hydraulic, water quality performance andncosts. An example involving the systematic investigation of a simple pipe sizing algorithm with thenset of 75,000 WDS is shown.