High-Fidelity Multiscale Modeling of Toxic Agent Releases in the Atmosphere

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Authors
  1. Lien, F.-S.
  2. Ji, H.
  3. Wen, D.
Corporate Authors
Defence Research and Development Canada, Suffield Research Centre, Ralston AB (CAN);Waterloo CFD Engineering Consulting Inc., Waterloo ON (CAN)
Abstract
Releases of toxic agents in the atmosphere may adversely affect a large group of people and contaminate extended geographical areas. The current operational atmospheric dispersion suite (ADS) developed by Environment Canada’s Environmental Emergency Response Section (EC-EERS) over the last 20 years can provide guidance on the transport and dispersion of toxic agents released into the atmosphere anywhere in the world. EC-EERS’s unique operational expertise combined with its sophisticated ADS can contribute to the assessment and mitigation of the impacts of such releases. The interaction of the environmental flow with large buildings creates complex flows in built-up urban areas. These flows need to be simulated to drive the transport and dispersion modeling system within the urban environment. The operational ADS used by EC-EERS, as most operational suites in use around the world, does not yet have the operational capability to include the complexities of wind flows in the urban canopy...
Keywords
modeling and simulation;computational fluid dynamics;complex flows;building-aware flow predictions
Report Number
DRDC-RDDC-2016-C089 — Contract Report
Date of publication
15 Mar 2016
Number of Pages
76
DSTKIM No
CA042407
CANDIS No
803530
Format(s):
Electronic Document(PDF)

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