Rapid prediction method for the behavior of hazardous substances in the water environment in the case of accidental leakage of hazardous substances and device thereof

摘要

The present invention relates to a rapid prediction method and device for the behavior of hazardous substances in the aquatic environment when hazardous substances are leaked. calculating a numerical simulation result including a water depth and a flow field according to (b) selecting the main feature points of the watershed as main points by indexing the numerical simulation result data based on the trend of flow velocity/water depth; (c) acquiring the flow velocity/depth field data at the time of the hazardous chemical spill by the flow velocity/depth observation station installed at the actual location of the selected major point when the occurrence of the spill accident is recognized; (d) Based on the actual flow velocity/depth field data obtained at the time of the spill at the observatory installed at the location of the main point, the indexed numerical simulation results are compared with the flow velocity/depth data of the main point to best determine the time of the spill. A step of retrieving the numerical simulation result shown and calling one numerical simulation result, and (e) using the selected one numerical simulation result and the physical/chemical characteristics of the hazardous chemical as input values of the transport and diffusion equation of the hazardous chemical By performing the simulation, the time for simulating the hydraulic dynamics of hazardous substances in the water stream can be greatly reduced, and it can be used for many activities and plans related to rapid response to hazardous chemical spill accidents.