Wind Tunnel Modelling of the Thorney Island Heavy Gas Dispersion Trials. Final Report January 1985-July 1986

摘要

A large number of wind tunnel simulations of the Thorney Island Heavy Gas Dispersion Trials have been performed at scales between 1:40 and 1:250 to establish overall trends with model scale and source conditions. The object was to assess the ability of wind tunnels to predict vapor dispersion from accidental releases. Most of the analysis has been based upon the use of peak concentration statistics. An overall picture of good model - full scale comparisons has emerged from a pattern of significant variability between individual realizations at both model and full-scale. Within the confidence of determining trends from such a set of results, support is given to the validity of relatively small scale modelling, particularly in the presence of sharp edged dispersing elements such as vapor fences.