Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Two-dimension Numerical Simulation of Stack Flue Gas Dispersion

  • Park, Young-Koo (Dept. of Env. Eng., Kangwon National University) ;
  • Wu, Shi-Chang (Department of Environmental Science and Engineering, Kyung Hee University)
  • Received : 2012.01.12
  • Accepted : 2012.03.09
  • Published : 2012.03.30
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Abstract

A numerical simulation of plume from a stack into atmospheric cross flow is investigated using a two-dimension model. The simulation is based on the ${\kappa}{\sim}{\varepsilon}$ turbulence model and a finite volume method. In this paper, it mostly researches how the wind velocity affects the flue gas diffusion from an 80 m high stack. Wind velocity is one of the most important factors for flue gas diffusion. The plume shape size, the injection height, the NO pollutant distribution and the concentration at the near ground are presented with two kinds of wind velocities, 1 m/s and 5 m/s. It is found that large wind velocity is better for flue gas diffusion, it generates less downwash. Although the rise height is lower, the pollutant dilutes faster and more sufficient.

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References

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