River Danube
one of the key locations of the flood forecast system
sensitive infrastructure needs reliable forecasts
ship traffic and the joint responsibility of WSA and NAG for a sound and safe operation characterize this river
Harbor area
forecast systems provide reliable information for triggering the closure of the harbor’s flood protection gates
DINO Neckar
training systems help to ensure and keep a high level of know how
Weir site Rockenau
in our simulation system for training and analysis, we reflect all aspects being relevant for weir operation
Weir Nussdorf
structure to control the inflow to the Danube channel
lifeline Danube
numerical models provide valuable information for safe and efficient ship traffic
HPP Birsfelden
This hydro powerplant was the first one having a training system based on our Virtual River.
HPP Lehen
As many other, this HPP is modeled in the forecasting system HYDRIS.
Lock operation may have a significant impact on the operation of hydro power plant - we provide training systems reflecting all the hydrodynamic aspects.

Management  Consulting  Engineering  Software

Understanding, modeling and conveying the complex relationships and interactions in rivers and water systems is the core competence of GR-Consult.

With over 30 years of experience in many Central European rivers and lake systems, we know the requirements and framework conditions that arise for the use of hydropower, flood protection and ecology. A special space is given to all questions that arise from – but also for – the use of hydropower.

The central tools for our work are numerical models. We develop hydrodynamic models ourselves and use model systems that integrate meteorological, hydrological and hydraulic aspects. In these areas, we have developed software and software systems in cooperation with universities, software companies and in close dialogue with our clients, representing the core element for flood warning and forecasting.

Many of our projects concern larger rivers and we have developed models for the Danube, Inn, Rhine, Main, Enns, March, but also the Oberland lakes in Switzerland. At the same time, of course, our references also contain many projects and reports on smaller-scale, regional issues.

Work areas & projects

In our projects there are some central topics that are closely related to the use and creation of water management software.
At the same time, we differentiate between the development of standard software and its application in projects.

Core topics of our projects are:

Development and implementation of flood forecast systems

Analyzes and fundamentals for the operation of hydropower plants and chains of power plants

Basics and system developments for flood management and flood protection, but also for low water

Development of river models for operational support and decision making

Studies, analysis and expert reports on all flow conditions in rivers, of course including floods and low water


Our software development focuses on hydrodynamic modeling and – based on this – on training and simulation systems for hydropower.

We create standard software packages and individual designed software.

With FLORIS, we have taken over one of the most powerful 1D models from ETH Zurich and it is used in forecasting systems, test systems for control systems and training simulators.

With Flux.DSS/DESIGNER and Flux.OPERATIONAL we have integrated simulation systems that have been used for decades in flood forecasting and reconstruction.

A current focus is on the development of training and assistance systems for water management.


News about GR-Consult

Flux Operational and FLORIS/F3 now also for Linux 225 225 GR-Consult

Flux Operational and FLORIS/F3 now also for Linux

Main topic “Interactive Simulation Systems” 1920 1040 GR-Consult

Main topic “Interactive Simulation Systems”

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