Numerical Simulation of Pollutant Dispersion from an Industrial Stack

Environmental pollution is one of major ahead problems. To know the manner of dispersion of pollution and effecting parameters on it can be so useful to manage and reduce its effects. In the present work a two-dimensional geometry used to simulate a stack and the dispersion domain. A CFD based approach used to investigate the effect of stack height, pollutant’s exit velocity and wind velocity, on the dispersion. Results show that in shorter stack the concentrate of pollutants on earth surface is more than longer one. However pollutants rise is not significant during moving and the maximum concentration is in the stack height limits. The higher wind velocity increases dispersion rate and exit velocity causes more rise of pollutants.