Titelmasterformat durch Klicken bearbeiten Stefan Trometer, CADFEM GmbH
Exploring Urban Simulation Semantic 3D City Models 3D city model of Frankfurt Generated and hosted by virtualcitysystems CityGML standard = data model NOT only visualization About 200.000 building objects Regularly updated database Automated processes indispensable Urban complexity is mandatory for many fields of application (wind, climate, risk mitigation, )
Exploring Urban Simulation Current Fields of Application Smoke & Pollution Flooding & Tsunami Urban Air Flow Urban Simulation & Urban Blast Crowd Movement
Exploring Urban Simulation Current Technology Partners Smoke & Pollution Novosibirsk State University of Architecture and Civil Engineering Flooding & Tsunami Urban Air Flow Urban Simulation & Urban Blast Crowd Movement
Titelmasterformat durch Klicken bearbeiten Demonstrators R&D Projects
Urban Blast Protection Project Type Blast pressure wave propagation in urban environments (DETORBA) Funded research project (BMBF) Web-Application for model preparation Interface to ANSYS Workbench Geometry optimization for explicit simulation Automated process implementation Solver Autodyn, LS-Dyna, Apollo Optimized post-processing Result visualization in Web-Application Sensitivity & robustness analysis OptiSLang Optimization of structural members
Urban Air Flow Project Type High-Rise wind loading and pedestrian air flow comfort Demonstrator Measured wind profiles Cooperation with Model preparation Velocity contours at a height of 50m and 150m Pedestrian comfort at ground level
Turbulence Modeling in Urban Space Project Type Wind flow modeling in the vicinity of complex buildings within an urban environment PhD project of S. Valger (Prof. Fedorova) Distribution of time-averaged static pressure
Urban Air Quality & Climate Project Transient urban smoke development under steady-state air flow conditions Type Demonstrator Realistic fire scenario Steady-state air flow conditions Target Urban air quality & pollution Urban climate Temperature development of a roofing fire scenario modeled with additional variable transport
Geometry Optimization for CFD Project Type Optimizing city model geometry for individual CFD simulation Demonstrator Cooperation with Pre-optimized CityGML model export Enhancements in meshing city models using the ANSYS AIM Shrink Wrap Method Target Increasing automated meshing for urban complexity Decreasing labor for high quality CFD models
Implementation of Building Models (BIM) Project Type Implementation of detailed IFC BIM building models into city models Demonstrator Integration into city models for local & urban simulations Import ANSYS Workbench IFC BIM model from Architecture & Engineering Urban steady-state air flow condition and evaluation of wind loading on building windows Target Tool to create simulation models with different levels of detail based on IFC building models
River Flooding & Tsunami Protection Project Type River flooding & Tsunami protection in urban environments Demonstrator Submitted research proposal with subcontract for ANSYS Germany Global Tsunami risk analysis with the GFZ early warning system TRIDEC Cloud showing a forecast scenario for Singapore (Source: GFZ Potsdam) 2D model of the Elbe for river flooding scenarions (Source: TU-Dresden) 3D simulation of a Tsunami impacting a building with ANSYS Fluent
Urban Automotive Engineering Contact with AUDI and MAN Trucks Topics Driving simulator in virtual cities Car body design based on real street conditions (road scan) Autonomous driving Car-to-car network in urban environments Source: City of Zurich
Urban Crowd Movement Project Type Crowd simulation in urban environments for evacuation and major events Demonstrator Rescue Zone Cooperation with Model definition Evacuation Area Urban evacuation scenario with 2.000 people based on semantic city model data of building usage Transient simulation result Result: Evacuation takes less than 6 min Rescue Zone
Urban Waste Heat Detection Topic Type Partners Waste heat detection by unmanned aerial vehicles Research proposal (BMWi) Hangwind Fraunhofer Morgenstadt (IAO, IOSB)
Questions? CADFEM GmbH Dr.-Ing. Stefan Trometer New Business Development - Digital City Marktplatz 2 85567 Grafing b. München Germany Tel: +49-(0)8092-7005-35 Fax: +49-(0)8092-7005-570 E-Mail: strometer@cadfem.de www.cadfem.de