ISSN : 1796-203X
Volume : 4    Issue : 9    Date : September 2009

Modeling a Hypothetical Chlorine Release on a College Campus
Kerrie J. Long, Frank J. Zajaczkowski, Sue Ellen Haupt, and L. Joel Peltier
Page(s): 881-890
Full Text:
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The release of a harmful contaminant into a densely populated area could quickly affect significant
numbers of people. The results of a physical modeling study of the atmospheric transport and
dispersion of a hypothetical chlorine release are presented as a case study for situational
awareness and preparedness planning. Both a Computational Fluid Dynamics (CFD) model and a
rapid response model are used to illustrate different modeling aspects in an effort to aid
development of emergency response preparedness for a worst-case scenario event. The accuracy
of the two approaches and an analysis of the maximum possible impact of the release on the
nearby population are assessed. The two models are compared and contrasted with a primary
difference resulting from the ensemble average approach of the rapid response model versus the
specific realization produced by the CFD model.

Index Terms
dispersion modeling; chlorine; situational awareness; Computational Fluid Dynamics (CFD);
Hazard Prediction and Assessment Capability (HPAC)