Method for creating input data of Eulerian Diffusion Model using Lagrangian Particle Dispersion Model

摘要

The present invention relates to a method for constructing an Eulerian diffusion model input data using a Lagrangian model result. In the model for calculating the position and concentration of radioactive materials emitted during a nuclear power plant accident, the local scale region (the Korean peninsula and its surrounding area) By using the available Lagrangian diffusion model results as inputs to the Eulerian diffusion model, Eulerian diffusion modeling was improved to better describe these distributions in the metropolitan area (East Asia and the Western Pacific) It is aimed to grasp the distribution accurately. The method for constructing the Eulerian diffusion model input data using the Lagrangian model result according to the present invention includes: a first step of verifying concentration data and performance information of a high-resolution radioactive material, which is modeling result of a Lagrangian model (LPDM); The gridded information of the lattice points of the Lagrangian model (LPDM) and the low-resolution Eulerian model (EDM) verified in the first step and the distribution of the concentration, time, and particle diameter of the radioactive material are obtained, A second step of interpolating and interpolating the information to the lattice points of the EDM; And a third step of storing the concentration data converted in the second step in an input data format of the Eulerian diffusion model. In the second step, the Lagrangian model grid and the Eulerian model grid data are read in step 2-1, and the Lagrangian model grid information read in step 2-1 is stored in the lattice of the Eulerian model grid using the latitude and longitude information. Step 2-2 of determining whether the lattice model grid is determined in step 2-2, and interpolating the Lagrangian model grid on the Eulerian model grid according to time division, vertical layer, and particle diameter distribution.