The Research Of Computer Modeling On Atmospheric Contamination Diffusing

The research of computer modeling on atmospheric contamination diffusing was based on the basic theory of atmospheric diffusing. The inclined smoke mode of source attenuation was brought forward that was based on the basic theory of atmosphere diffusing, completely comparing with and analyzing all sorts of atmospheric contamination modes, and that was considered the default of atmospheric contamination modes in existence, the components, amount and letting traits, and that was built based on the dry sediment mode and the amending mode of wet sediment and chemical migrating. It was found that the inclined smoke mode of source attenuation could improve the relative precision in the calculation by comparing with the other point source diffusing modes. In a certain extent it was further perfected the atmospheric contamination diffusing modes. Secondly, the research of computer modeling on atmospheric contamination diffusing was based on sufficiently comparing with the point source, the limited line source, the unlimited line source, the area source and the solid source. The simple, full, and applied modes were selected. The computer modeling box of the atmospheric contamination diffusing modes were programmed based on the atmospheric contamination diffusing modes in MATLAB. The function in the computer modeling box of the atmospheric contamination diffusing modes could be directly used in MATLAB, which could be directly transferred the functions in itself. So it realized real time calculation and quickly soluting the pollutant concentration in the forecasting point. It made the results graphs, which could display the pollutant concentration distributing charts in the forecasting point and the pollutant concentration trend charts in the wind. The DEMOS in the box could also probably display the pollutant concentration distributing charts in the forecasting point and the pollutant concentration trend charts in the wind. It got the anticipative results in the debugging on the box by the universal data. Lastly, the relation among the different modes was analyzed in the research. The way of selecting modes, parameter dealing and the research were advised on. The development of diffusing modes and the perfection of box were discussed. The software box was debugged by the universal data, which was successful. But the atmospheric pollutant diffusing modes and the atmospheric pollutant diffusing software box should be gradually enriched and perfect. Their practicability, materiality and accuracy were increased.