Numerical and Experimental Analysis of Car Exhaust Pollutant Dispersion
نویسنده
چکیده
The aim of the paper is to compare results obtained by experiments and numerical analysis for vehicle exhaust pollutant emissions and concentrations in urban area. Special attention was plaid to problems of vehicle pollutant emission and dispersion caused by cold start. For description of emission sources a multi-point model was applying. In the model every vehicle is treated as a single moveable and changeable source of pollutant emission. The finite volume method was used to discretise equations describing the process of pollutant dispersion. Data on emission of exhaust gas components were obtained by measurements. Measurements were also carried out in order to verify the assumed model of dispersion and method of its discretisation. The paper presents and discuss results of calculation and experiment. Satisfactory compatibility of calculation results and measurements was achieved.
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