Interior Decoration-based Indoor And Outdoor Air Pollution Numerical Simulation Study

The air pollution of interior decoration as one of the hot current air pollution studies,which reflect the interaction between human activities and indoor and outdoor airenvironment. The air pollution of interior and buildings will impact on the human health ofthe family and the community. This article is proceeding from the point, to study changes inthe concentration of indoor pollutants mathematical models and outdoor residential airpollution model and numerical models to simulate validation, in where the interior decorationis completed. This study base on the computer technology, through the theoretical analysis,experiments and data processing, and the use of multiple regression analysis and forecastingmethod and finite element method and other methods. Research mainly includes the followingtwo aspects, and to draw the appropriate conclusions:(1) Numerical simulation of indoor air pollutantsThrough theoretical analysis, experiments and data processing, established a numericalmodel to predict a pollutant concentration after the completion of interior decoration; andconducting the simulated study on the impact of the amount of ventilation on indoor airpollutant concentrations for specific conditions, and deduce numerical simulation formulaunder ventilation of indoor air pollution, obtained the pattern of changes of indoor airpollutants concentration under certain conditions, which indicate that indoor air pollutants(formaldehyde) in the room changes in the concentration of pollutants in the room(formaldehyde) background concentration values are great links in short ventilationconditions. As the indoor pollutant background concentrations continue to decrease, at thesame time and ventilation window area, the ventilation of indoor pollutant concentrations alsodecreased, and eventually achieves health standards. Also by using the multiple regressionsanalysis found the mathematical model under the conditions of indoor pollutantconcentrations change. And base on mathematical model in the residential field and laboratoryapplications derived experimental study, and the numerical model th simulate validation anddiscussion.(2) Numerical simulation of outdoor air pollutants Under conservation of mass, momentum conservation, energy conservation district toestablish outdoor pollutants differential equations and finite element method finite differencemethod to solve partial differential equations of the hard discrete, and also build up forecastmodel on the concentration of a cell at a point; also considering the wind speed in the districtin the air pollution study model, the mathematical and physical models for residential airpollutants under certain conditions, the diffusion, has been the general rules under certainconditions and the cell proliferation of air pollution. The spread of contamination model isbuilt in two-dimensional constant condition by solving the problem of the proliferation ofpollutant dispersion formula, and conduct the numerical simulation model verification anddiscussion. The model can predict the concentration of the pollutant concentration in the cellvaries with time and space when.This is a computer-based study which is base on numerical simulation studies of interiordecoration air pollution by combining the utilization of theoretical analysis, experiments anddata processing, and to build models to describe and predict the district’s newly renovatedinterior and discussed. From the results of this study, the effect is better, prove the use ofcomputer technology in conjunction with a variety of research methods have a good prospect.