复杂地形对污染物扩散影响的CALPUFF模型研究

Abstract

Abstract: In this paper, the WRF/CALPUFF model is used to simulate a tracer experiment at Taohuajiang Inland Nuclear Power Plant in Hunan Province, and the plume dispersion of SF₆ in complex terrain is studied. The simulated results are compared with field experiment results. The results show that the dispersion of SF₆ approximates a Gaussian distribution with the distance from the sample points to the release point, and the maximum value of SF₆ dispersion factor appears at 1.2 km from the release point. Terrain is an important factor affecting the dispersion trajectory of SF₆. In addition, the statistical parameters are used to analyze the feasibility of model. The value of FAC₂ and FAC5 is 30.1% and 57.7%, respectively. These values show that the simulated dispersion factor are better in agreement with the observed dispersion factor. In conclusion, the CALPUFF model can simulate the dispersion of pollutants over complex terrain.

Key words: WRF model, CALPUFF model, complex terrain, dispersion factor

CLC Number:

X169

SHI Xuefeng, GUO Dongpeng, WANG Ran, LI Yunpeng, YAO Rentai. Effects on pollutant dispersion over complex terrain on CALPUFF model[J].RADIATION PROTECTION, 2022, 42(5): 433-441.

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Effects on pollutant dispersion over complex terrain on CALPUFF model

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