A Review on the Atmospheric Dispersion of Heavy Gases and Heavy Gas Diffusion Models

Abstract

There were some tragic acciednts of the release of cryogenic liquefied gases and toxic chemicals and it was found that atmospheric dispersion of these vapor cloud was much different from the well-known dispersion behavior of trace gases. Therefore, many dispersion experiments were carried out in order to understand the behavior of heavy gases in U. S. and Europeian countries. Mathematical models were also developed for the risk analysis of the concerned facilities. These haevy gas diffusion models are reviewed here.