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Full scale plume rise modeling in calm and low wind velocity conditions

【摘要】
A variety of models and software products are in use for computer simulation of pollutant dispersion for air pollution assessment. All of them need to calculate the so called effective stack height, b... 展开>>A variety of models and software products are in use for computer simulation of pollutant dispersion for air pollution assessment. All of them need to calculate the so called effective stack height, but problems are encountered in calm and low wind velocity conditions. The present research aims at such meteorological situations. Based on a full scale numerical simulation, the plume rise has been investigated in subadiabatic and nearadiabatic conditions. The influence of the emission and stack parameters, the ground level air temperature, the temperature gradient of the atmosphere, and the surface wind velocity in the range from 0.0 to 1.0 m/s is studied. A computational fluid dynamics problem has been formulated and solved for planned combinations of meteorological conditions and emission parameters. For each numerical simulation the height of the plume center line and hence, the plume rise has been assessed. The results obtained have been used to work out new mathematical models for plume rise calculation. 收起<<

【作者】
Nikolay Kozarev
Nina Ilieva
Evgeni Sokolovski

【刊期】
Clean Technologies and Environmental Policy
EI
SCI
2014年3期

【语种】
eng