Method for arranging radioactive monitoring points in air based on numerical simulation

The invention relates to a method for arranging radioactive monitoring points in air based on numerical simulation, and the method comprises the steps: determining a numerical simulation region range according to the distribution condition of emission source items and the distribution condition of buildings in a factory; constructing a three-dimensional terrain model in the simulation area, constructing a three-dimensional building model, and coupling the three-dimensional terrain model and the three-dimensional building model to establish a three-dimensional physical model; establishing a mathematical model, and carrying out numerical simulation calculation to obtain the nuclide distribution condition in the atmospheric wind field under different atmospheric environment parameter conditions in the simulation area; and according to a nuclide distribution condition simulation result, radioactive monitoring points are arranged in a targeted manner. By adopting the method disclosed by the invention, the radiatio