Lotic Water Hydrodynamic Model

Technical Report · Fri Jan 23 04:00:00 EST 2015

DOI:https://doi.org/10.2172/1168702· OSTI ID:1168702

Judi, David Ryan ^[1]; Tasseff, Byron Alexander ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Water-related natural disasters, for example, floods and droughts, are among the most frequent and costly natural hazards, both socially and economically. Many of these floods are a result of excess rainfall collecting in streams and rivers, and subsequently overtopping banks and flowing overland into urban environments. Floods can cause physical damage to critical infrastructure and present health risks through the spread of waterborne diseases. Los Alamos National Laboratory (LANL) has developed Lotic, a state-of-the-art surface water hydrodynamic model, to simulate propagation of flood waves originating from a variety of events. Lotic is a two-dimensional (2D) flood model that has been used primarily for simulations in which overland water flows are characterized by movement in two dimensions, such as flood waves expected from rainfall-runoff events, storm surge, and tsunamis. In 2013, LANL developers enhanced Lotic through several development efforts. These developments included enhancements to the 2D simulation engine, including numerical formulation, computational efficiency developments, and visualization. Stakeholders can use simulation results to estimate infrastructure damage and cascading consequences within other sets of infrastructure, as well as to inform the development of flood mitigation strategies.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); Dept. of Homeland Security (DHS) (United States)
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1168702
• Report Number(s): LA-UR--15-20398
• Country of Publication: United States
• Language: English

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