FLO-2D

Purpose: Model differing flood scenarios
Developer: FLO-2D Software Inc
Key Features: Ability to integrate different types of topographical information; Interface with SWMM and MODFLOW; 2-D calculations
Latest Release: 2014
OS Platform: Windows, UNIX
Cost: Free and subscription fee
Related Software: Flood Modeller, MIKE FLOOD, MIKE-SHE, SOBEK
Website: FLO-2D information

Introduction

FLO-2D is a 2D flood routing model that combines hydrology and hydraulics. The hydrological component is a rainfall-runoff model, with an overland flow model that simulates the movement of the flood volume around the grid. Flow conveyed into the channel is routed using the 1D Saint Venant wave equation. FLO-2D is useable for a wide variety of applications, for example, flood mitigation studies, storm drain modeling, dam breach analysis, surface and ground water interactions, mud flows, and sediment transport.

Key features of the FLO-2D model include a Graphical User Interface (GUI), Grid Developer System (GDS), and Mapper. The features allow the user to process and edit the grid data, graphically edit hydraulic structures, and create flood risk and flood hazard maps. FLO-2D is capable of processing different types of topographical data and can be coupled with the third party software SWMM.

Advantages and Limitations

Advantages Limitations
  • Ability to integrate different types of geospatial data e.g., LiDAR, aerial images, shape files, contour maps and DEM
  • Import HEC-RAS geometry cross-sections
  • Webinars are provided frequently
  • Software can be coupled with SWMM and MODFLOW
  • Model storm surge and tsunami impacts
  • Detailed technical report and users' manual
  • Training and customer support is available via vendor
  • Grid element represents single elevation, Manning’s n value, and flow depth
  • Hydraulic structures and rating table are developed outside of the model
  • Rapidly variable flow, i.e. a dam breach, is not simulated
  • 1D channel flow (no secondary currents, or vertical velocity distributions)

Illustrative Screens

Sample Applications

Africa East Asia and the Pacific Europe & Central Asia Latin America & the Caribbean Middle East and North Africa South Asia
Simulation of November- 2000 flood, Thailand Numerical simulations of debris flow, Slovenia Debris flow of volcanic origin, Ecuador

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