ABSTRACT
Integrals tools are widely used in dispersion analysis procedures, providing fast dispersion estimations and usually reliable results when describing unobstructed gas flow over flat terrain. However, nowadays with the computational advances, CFD tools are used to short and medium range gas dispersion scenarios; especially on complex topographies. This paper compares experimental data of the Burro and Falcon series with simulations evaluated by the integral model UDM (Unified Dispersion Model) and a CFD model. Furthermore some advantages and disadvantages of each model are discussed. This study contributes to the decision making about the choice of the most appropriated model to evaluate the cloud dispersion.
