Research On Mathematical Model Of Gas Dispersion and Analysis Of Engineering Applicability

Abstract: The leakage and dispersion of hazardous substance in petroleum and petrochemical companies often lead to the significant fire or explosion accidents. This paper gave a simple general review over the currently used methods of numerical simulations for gas dispersion including the basic principle, merits and demerits, and the range of engineering applicability. In addition, by means of the widely used softwares, such as DNV-SAFETI, ALOHA, FLUENT, this paper made a result contrastive analysis about the numerical simulation, it pointed out that the 3D simulations always have the higher accuracy on the results. However, due to the simply calculation, short time-costing and easy understood on the consequences, the simplistic empirical simulations were generally accepted and had a better engineering applicability. Last of all, the paper also put forward some recommendations for this field.

Keywords: gas dispersion; model contrast; simulation; engineering applicability