Development of simultaneous charging-coagulation model for radioactive aerosols
QI Zhichao
WANG Hui
SUN Xiaohui
CHEN Qiaoyan
YU Suyuan
Abstract：The decay of radioactive aerosols leads to the accumulation of surface charges and the occurrence of electrostatic interactions among charged particles,thereby influencing the evolution and migration of aerosols.To study the impact of particle charging on condensation behavior,a comprehensive charging-coagulation kinetic equation was formulated.Subsequently,the bivariate group balance equation was discretized and numerically solved using the sectional method and cell average technology.A computational code was developed and validated through comparison with approximate analytical solutions and classical experi-ments.The results show that the simultaneous charging-coagulation model is capable to accurately predict the simultaneous char-ging-coagulation behavior of radioactive aerosols and elucidate the direct effect of particle charging on the coagulation behavior.
Keywords：radioactive aerosolcharging-coagulation modelbivariate population balance equationsectional method
Publication Date：2023-12-25
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：10( 115-124 )