Different solutions of the diffusion equation and its applications

Beni-Suef University Journal of Basic and Applied Sciences

Ahmed S. Shalaby¹  Soad M. Etman²  Maha S. El-Otaify²  M. Embaby²  Khaled S. M. Essa²  Ahmed M. Mosallem² 

[1] Department of Physics, Faculty of Science, Beni-Suef University;Mathematics and Theoretical Physics Department, NRC, Egyptian Atomic Energy Authority;

关键词: Advection–diffusion equation;    Pollutants deposition;    Extreme ground-level concentration;    Egyptian atomic research reactor;    Urban atmosphere;    The conservative material;   

DOI  :  10.1186/s43088-021-00153-4

来源: DOAJ

【 摘 要 】

Abstract In this  report, we solved the advection–diffusion equation under pollutants deposition on the ground surface, taking wind speed and vertical diffusion depend on the vertical height. Also, we estimated a simple diffusion model from point source in an urban atmosphere and the conservative material with downwind was evaluated. Then, we calculated the extreme ground-level concentration as a function of stack height and plume rise in two cases. Comparison between the proposed models and the emission from the Egyptian Atomic Research Reactor at Inshas had been done. Lastly, we discussed the results in this report.

【 授权许可】

Unknown