Multi-resolution models: Recent progress in coupling 3D geometry to environmental numerical simulation

Vasco Varduhn, Ralf Peter Mundani, Ernst Rank

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations


In this paper, we present recent results on coupling geographic, infrastructure, and building models to multi-resolution numerical simulations. In order to achieve this, a parallel data access framework with interfaces to all parts of the simulation pipeline such as pre-processing, numerical simulation, and post-pro-cessing has been developed. The applicability of the approach presented in this work is shown by simulating urban flooding including surface flow of a city, the pipe network interaction, and its consequences to individual buildings. While the real life city model including the drainage system has been provided by the authorities of the city of Munich and comprises an area of about 2 by 2 km with detailed topography and a complete set of approximately 3,000 buildings modelled on LOD 1 of CityGML, IFC-models are the initial starting points for generating octrees on the level of individual buildings. In order to investigate the effects of the drainage system collapsing due to a heavy rain scenario, a fully three-dimensional parallel free surface flow simulation is incorporated with the interaction of the one-dimensional pipe-network flow. The whole simulation is performed on three levels of resolution, each of which is discretised by a fast voxelisation algorithm to generate a computational grid for the CFD simulation.

Original languageEnglish
Title of host publication3D Geoinformation Science - The Selected Papers of the 3D GeoInfo 2014
EditorsJoachim Benner, Karl Heinz Haefele, Martin Breunig, Edgar Butwilowski, Paul V. Kuper, Mulhim Al-Doori
PublisherSpringer Berlin Heidelberg
Number of pages15
ISBN (Print)9783319121802
StatePublished - 2015
Event9th International 3DGeoInfo Conference, 2014 - Dubai, United Arab Emirates
Duration: 11 Nov 201413 Nov 2014

Publication series

NameLecture Notes in Geoinformation and Cartography
ISSN (Print)1863-2351


Conference9th International 3DGeoInfo Conference, 2014
Country/TerritoryUnited Arab Emirates


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