DISPERSION OF VAPOURS

Authors
  1. Heidorn, K.C.
  2. Murphy, M.C.
  3. Davies, A.E.
Corporate Authors
Rowan Williams Davies and Irwin Inc, Guelph ONT (CAN);Defence Research Establishment Suffield, Ralston ALTA (CAN)
Abstract
The releases of nerve agents in the CAVA trials of 18 and 20 June 1986 have been simulated with numerical dispersion models to estimate concentrations downwind of the release site. A review of available atmospheric dispersion models resulted in the choice of the INPUFF model as the model most able to represent the release of agent vapours. In order to provide required input information to the INPUFF model, three additional models were used. The NUSSE3 model was used to estimate the fraction of the release mass which was initially in the vapour phase. The D2PC model (supported by a modified SPILLS model and the Army model) was used to estimate the rate of evaporation of the liquid fraction on the ground. The meteorological parameters were estimated by a boundary-layer meteorological model developed by the Ontario Ministry of the Environment and empirical equations of Panofsky and coworkers.
Report Number
89-262-6 — Final Report; See also DSIS 90-00944
Date of publication
15 Dec 1989
Number of Pages
171
DSTKIM No
92-03599
CANDIS No
126960
Format(s):
Hardcopy;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: