AUTHOR=Yu Huiyu , Gu Haifeng , Sun Zhongning , Zhou Yanmin , Chen Junyan , Li Yingzhi 

TITLE=Experimental and Numerical Study on the Gravitational Deposition and Coagulation of Aerosols

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.840503

DOI=10.3389/fenrg.2022.840503

ISSN=2296-598X

ABSTRACT=The gravitational deposition and coagulation of aerosol was studied experimentally based on COSTTHES facility, and numerically solved based on continuous general dynamic equation, the experimental results and the numerical results were in good agreement. In the present study, the applicability of the zero-dimensional model for deposition and coagulation of aerosol was verified. The considerable distortion can occur due to the coagulation of the aerosol, which significantly influenced the removal rate of the aerosol with diameter greater than 0.76 microns, and the value of the dynamic shape factor of the aerosol used in the present experiment was obtained as 4. In the experimental and numerical studies, it’s found that the combined effect of the gravitational deposition and coagulation of the aerosol can result in the increase in the number density of the aerosol with specific diameters, and the concentration-increment size would increase as settling continued.