itwh GmbH software

Urban Flash Floods System

Calculation of flooding through urban flash floods. The hydraulic simulation of the surface runoff in case of a canalization overload is done by means of a 2-dimensional calculation approach. The spatial extent, the chronological progression and the water depth of flooding may be analyzed. Precautionary measures may be deduced from the analysis and verified for their effectiveness.

Hydrodynamic Sewer System Simulations

Hystem-Extran - Hydro-Dynamic Simulation of Sewer Systems

HYSTEM-EXTRAN is the classic option for hydro-dynamic simulation of sewer systems: in the complete re-visited version 8 (among others) this expands for simulating pollutant loads coming from the surface. Use HYSTEM-EXTRAN for proving hydraulic efficiency, for example for master plans, as well as for new planning and replanning of sewer networks.

Simulation and Verification of Drainage Systems

Rainfall-Runoff Model for Continuous Quantity and Quality Simulations

KOSIM is a well-established and state-of-the-art rainfall-runoff model for continuous quantity and quality simulations on Windows platforms. KOSIM will be available in Chinese.

Graphical Sewer System Planning

Comprehensive GIS-Based Information- and Planning System

With FOG you will get a comprehensive GIS-based information- and planning system, which operates within urban drainage (with HYSTEM-EXTRAN) and urban flood management (with FOG 2D). As an extension for the geographic information system ArcGIS (ESRI), FOG meets all requirements for an efficient urban drainage planning. FOG 7 is also availabe in Chinese language.

Graphical Planning and Information System for Urban Sewer Systems

GIPS is a Windows-based, easy-to-use graphical planning and information system for urban sewer systems. It is integrated into the leading CAD tool AutoCAD® and offers the design, analysis and inventory treatment of canalisation systems on your PC.