DEVELOPMENT OF A MODEL FOR EVALUATING THE EFFECTIVENESS OF A SYSTEM FOR COLLAPSING POTENTIALLY DANGEROUS OBJECTS
The paper analyzes the potential danger of fuel and lubricants supply facilities based on field fuel depots. The influence of various types of structures of protective structures of high-risk objects is considered. An approach is proposed for modeling the spread of clouds of dangerous substances using a physical and mathematical model. Numerical simulation of the spread of clouds of dangerous substances was performed using a CFD package (computational fluid dynamics). The standard k-ε turbulence model was used for the turbulent closure. Cases with different designs of collapsing of field fuel depots are considered. The vertical profile of velocity, pressure, density, temperature, and atmospheric turbulent viscosity were taken as boundary conditions in the model. The developed approaches are applicable for modeling the propagation of dangerous substances in the atmosphere, taking into account the obstacles in the path of the cloud. The characteristics of the concentration of vapor propagation of evaporation of petroleum products during an emergency spill were studied quantitatively. This approach is applicable for urgent forecasts of oil product distribution as a result of an emergency spill. Based on the analysis of the time required for the calculation, it can be concluded that when modeling a group of objects characterized by complex geometry and large spatial size, the process will take from several hours to several weeks, which is unacceptable when rapid assessment of the consequences of an accident is required in a short time to take emergency measures to locate and eliminate them.