Physical and Mathematical Modelling of Heavy Gas Dispersion — Accuracy and Reliability
The dispersion of hazardous and toxic gas, often cold and/or heavy in nature, is an important issue within the framework of risk analysis studies associated therewith.
In addition to the analysis of the behaviour of these gases on dispersion by experiments carried out in the field, such an analysis can also be carried out with mathematical models, wind and water tunnels.
The different possibilities and impossibilities offered by the use of wind and water tunnels, mathematical box-models and the so-called three-dimensional models are presented herein.
By analyzing the results obtained from a small scale dispersion experiment carried out in a calm environment, and the results obtained from a wind-tunnel simulation of one of the Thorney Island experiments, two scaling rules have been determined which can play an important role in reliability of physical modelling alongside the scaling-rules in normal current use.
KeywordsVortex Toxicity Argon Propane Explosive
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