OpenFlows FLOOD

Flood modeling and risk management software

Model and simulate extreme events using accurate and reliable flood risk analysis data

FLOOD is flood modeling software for analyzing and mitigating flood risk in urban, riverine, and coastal areas. Using spatially distributed numerical models, users can quickly simulate all hydrological and hydraulic processes to support emergency planning and green-initiative design. Apply a multi-scale 1D/2D approach to support flood early warning systems (FEWS).

Mitigate urban flooding

Urban flooding poses risks to residents, damages property and infrastructure, and disrupts urban services. Create efficient solutions that increase the resilience of urban drainage systems and implement mitigation measures, such as low-impact development and green initiatives. Mitigate these issues by producing detailed simulations to identify bottlenecks and hotspots that hinder the capacity of stormwater drainage systems.

Prevent riverine flooding

Calculate river flow to understand, evaluate, and optimize reservoir operations to minimize and prevent damages from riverine floods. Design and improve emergency structures and outline flood-resilient land use strategies, all within a climate change context. Simulate the exchange of water between the river flow and (sub)surface flow based on hydraulic gradients. Produce inundation maps, flood risk maps, and hazard maps that address riverine flows, river defense capacity, and large-scale land use changes. Estimate the drainage network from topographic maps and to interpolate cross sections in space.

Model coastal flooding

Coastal flooding can be caused by high tides, storm surges, and tsunamis, sometimes in combination with insufficient urban drainage capacity or high upstream river flows. Dynamically model complex array of processes related to coastal flooding to find accurate solutions for defining and improving storm surge and tsunami protection plans.

Analyze flood inundation areas

Calculate the extent of flooded areas and estimate the flood hazard based on water column heights and peak flow velocities. Easily integrate models generated with OpenFlows SewerGEMS to simulate surface and stormwater flow. Create scenarios and make comparisons among different alternatives to rapidly find the best solution for flood risk mitigation.

Add real-world context, animation, and visualization

Explore and present model results using a wide range of integrated visualization capabilities, including the option to make smooth, continuous animations of the obtained results. Help stakeholders better understand the risks and impacts of flooding events and potential mitigation actions with integrated 3D reality models. Bring simulations to life by generating realistic visualizations of flood events using LumenRT.

Build and manage hydraulic models

Leverage and import many well-known external data formats to maximize ROI on geospatial and engineering data. Jumpstart the model building process and manage models effectively to keep focus on making the best engineering decisions.

Technical Capabilities
System Requirements

Areas of Application

Rivers
Estuaries
Coastal areas
Cities and urban drainage systems
Cities and urban drainage systems
Critical infrastructure and industrial facilities

Flood Simulation

Heavy rainfall and storm events
Soil water saturation
Dam breaks
Levee or dike breach
Inefficient urban drainage capacity
Storm surge
Tsunamis
Sea level rise
Exceptionally high tides (king tides)

Hydraulics

2D overland flow
1D river/open channel bidirectional flow
1D pipe flow model (OpenFlows SewerGEMS/ SWMM solvers)
1D river and 1D pipe coupling with 2D overland flow
3D subsurface flow
Adaptive variable time step
Extended period simulations
Kinematic, diffusion, and dynamic wave (St. Venant equations) approaches
Multiple point discharges input
Multiple open boundary conditions
Infiltration methods: Green-Ampt and SCS Curve number
Dynamic simulation of surface and groundwater interaction
Robust, accurate, and fast numerical solvers
OpenMP parallel processing technology

Hydrology

Spatially and temporally variable precipitation
Automatic separation of precipitation into snow and rainfall
Multiple evapotranspiration methods
Water uptake by vegetation roots
Precipitation interception by vegetation

Interoperability

Import Bentley TIN format digital terrain model files
Direct import of ContextCapture 3D digital terrain models
Output formats compatible with LumenRT
Support for GDAL Raster formats (ARC, ADF, TIFF, etc.)
Support for EsriShapefile format
Support for WKT format
Export to KML Google Earth format
Automatic import of NASA DTM database (worldwide)
Native output format seamlessly supported by LumenRT 3D visualization tool

Environmental Processes

Fecal contamination dispersion
Biochemical oxygen demand
Transport and dispersion of dissolved and particulate matter
Sediment transport via erosion or deposition
Splash erosion
Advanced water quality and water pollution modeling engine: transport, dispersion, and transformation of water quality properties, nutrients, and pollutants Graphical Interface and Visualization
Rich graphical user Windows interface
Map display with dynamic zooming and navigation
Multiple background layer support in Bing
Dynamic multiparameter and multiscenario graphing
Property-based color coding and symbology
Surface water flow direction displayed across any terrain
Automatic input and result fields filtering
Automated flood and hazard mapping
User-defined cross-section flow visualization
Node and time series data and results visualization
Multiple layout templates
Static and dynamic outputs

Model Building

Automatic coupling between 2D overland flow and OpenFlows SewerGEMS or SWMM 1D drainage network models
Automatic generation of inlets from buildings and streets
Dam break outflow hydrograph generation tools
Build and manage hydraulic models
Create and edit geographical data layers (points, lines, polygons)
Computational grid generation
Digital terrain model generation, processing, and editing
Various 2D spatial interpolation methods
Digital terrain model depression removal capability
Automatic watershed and drainage network delineation
Automatic computation of watershed areas, slopes, and flow direction
Automatic construction of default cross-sections (Strahler order, drained area)
Irregular cross-sections support
Cross-section editing capability
Spatially variable data processing capabilities
Automatic generation of curve numbers from land cover data
Automatic generation of Manning coefficients
Spatial and temporal interpolation capabilities for rain gauge networks
Automatic generation of meteorological data from models and re-analysis databases

Simulation and Scenario Management

Load and process models
Restart simulations
Unlimited scenarios and alternatives
Comprehensive scenario management
Scenario comparison

Processor

1.8 GHz or faster

Memory

2 GB or more

Display Color Depth

32 bits

Display Resolution

1280 x 1024 or higher

Disk Space

900 MB

Software

Windows 8, 10, Server or later, Microsoft.NET Framework 4.7 or later

Bentley Software by Cadventure

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