ABOUT FLO-2D SOFTWARE, INC.

FLO-2D Software, Inc. is located in Nutrioso in the White Mountains of Eastern Arizona. The company is a privately owned corporation. FLO is an acronym associated with the firm name of FLO Engineering, Inc. for Fullerton, Lenzotti and O’Brien that was located in Breckenridge, Colorado at the inception of the FLO-2D. FLO Engineering seemed more appropriate than OLF Engineering at the time. FLO Engineering has ceased to exist, but the FLO-2D model has continued to expand to become a flood routing model that is used worldwide. There are a number of modeling associates that insist on being anonymous, but the primary culprits are responsible for the FLO-2D modeling system are briefly described below. Jim and Reinaldo often present the FLO-2D short courses together.

Jimmy S. O'Brien - President/Creator of FLO-2D 
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The origins of the FLO-2D model grew out of a model developed by Jim O'Brien for FEMA called MUDFLOW in 1989 while at FLO Engineering, Inc. Jim O'Brien is president and a senior hydraulic engineer with FLO-2D Software, Inc. Dr. O'Brien has Masters degrees in aerospace and civil engineering from the University of Colorado and a Ph.D. civil engineering (hydraulics program) from Colorado State University. He received an undergraduate aerospace engineering degree from St. Louis University. He is the author of numerous articles on hydrology, river hydraulics, flood routing and hyperconcentrated sediment flows and is a licensed professional engineer in four states. He has over 20 years experience in hydraulics and sediment transport as a consulting engineer.

Reinaldo García - GDS and Mapper Developer
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Reinaldo is the co-designer and developer of the Grid Developer System (GDS) and the Mapper processor program for the FLO-2D model. He has also developed 2D and 3D free surface flow models, and detailed pollutants and sediment transport models. In 1996 he lead the development of HydroTrack and OilTrack, two commercial models to simulate 2D free surface hydrodynamics, pollutant transport and oil spills. He was the project manager to develop flood hazard maps using FLO-2D on more than 20 alluvial fans in Northern Venezuela that were impacted by severe mud and debris flows in December 1999. Reinaldo was a professor at the University of Central Venezuela for 25 years where he has taught computational fluid dynamics, finite element method in hydraulics and numerical methods. He earned a Master degree from the Ecole Polytechnique de Montreal, Canada and a Ph.D. from the University of Central Venezuela. He is now research scientist at the Department of Civil, Architectural and Environmental Engineering of the University of Miami. He has published numerous articles in journals, books and conference proceedings on sediment transport modeling, free surface flow models, finite element computation, and oil spills.

Craig Jorgensen - Software Engineer
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Craig Jorgensen is a computer programmer. He received his Bachelor of Science in Mathematics/Physics from Utah State University and his Masters degree in Computer Science from University of New Mexico. He has experience with Computer Graphics, Virtual Reality, Geometric Modeling, and Graphical User Interface Design. He generally programs in Java, C#, C/C++ or Visual Basic but has had practical experience with other languages (Scheme, Lisp, TCL/TK, PERL, etc.).

 
   
  
             
  

FLO-2D
2-Dimensional Flood Routing Model

P.O. Box 66
Nutrioso, AZ 85932
Phone: (928) 339-1935
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FLO-2D is a 2-dimensional flood routing model used by agencies engineers and floodplain managers worldwide to predict flood hazards. It will simulate a diverse spectrum of floods including river overbank flooding, unconfined alluvial fan floods, urban flooding, watershed rainfall/runoff, coastal flooding, tsunamis/storm surges, and mud and debris flows. FLO-2D routes a flood hydrograph while predicting floodwave attenuation due to flood storage. Flooding can occur on initially dry, unconfined surfaces and no complicated hot starts or boundary conditions are necessary. Flooding detail is simulated by components for levees, street flow, flow obstructions (buildings and berms), infiltration, alluvial fan distributary channels, rainfall, infiltration and evaporation losses, mobile bed and sediment transport. Risk hazard mapping is accomplished with an included post-processor and flood damages can be computed. FLO-2D is a FEMA approved hydraulics model for both riverine studies and unconfined alluvial fans.