The Theoretical Prediction of Radioactive Aerosol Diffusion Based on Instantaneous Point Source Model

Abstract:

The theoretical prediction of radioactive aerosol diffusion based on the instantaneous point source model is investigated, considering the effects of emission heights, ground reflection, dry deposition, wet deposition, radioactive decay and other factors based on the Gaussian diffusion model. Numerical simulations are performed to calculate the concentration distribution of the radioactive aerosol and to determine the evacuation zone. Simulation results show that the atmospheric stability tends to be the key factor of the radioactive aerosol distribution.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 588-591
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.588
• Online since: May 2014
• Authors: Fang Liu*, Xiao Lei Cheng
• Keywords: Atmospheric Stability, Instantaneous Point Source, Radioactive Aerosol

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