Fast and Accurate Prediction of Windborne Contaminant Plumes for Civil Defense in Cities

Abstract

An instantaneous crisis management system called CT-Analyst(tm), based on detailed urban aerodynamics computations using Large Eddy Simulation (LES), has been developed tested, and deployed to evaluate windborne Contaminant Transport (CT) threats and to aid in time-critical civil defense decisions in cities where current transport and dispersion methods are too slow and inaccurate. Designed for the military prior to 9/11, CT-Analyst can incorporate verbal reports, handle input from fixed and mobile sensors, and functions in realistic emergencies where the nature, amount, and location of an airborne contaminant source or Chemical, Biological, Radiological (CBR) agent is unknown and where the wind fields are dynamic and complicated by the city geometry. CT-Analyst is well suited to urban and site defense in the homeland Security context.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2010
Accession Number
ADA524039

Entities

People

  • Adam Moses
  • Gopal Patnaik
  • Jay Boris
  • John Delaney
  • John Donnelly
  • Keith Obenschain
  • Mi-young Obenschain
  • Theodore Young Jr.

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Buildings And Structures
  • Civil Defense
  • Computational Fluid Dynamics
  • Crisis Management
  • Emergencies
  • Engineering
  • First Responders
  • Fluid Dynamics
  • Geometry
  • High Resolution
  • Homeland Security
  • Large Eddy Simulation
  • North Carolina
  • Simulations
  • Three Dimensional
  • Urban Areas

Readers

  • Computational Fluid Dynamics (CFD)
  • Critical Infrastructure Protection in CBRN and WMD Threats.
  • Emergency Management and Homeland Security.