中国物理B ›› 2006, Vol. 15 ›› Issue (8): 1864-1870.doi: 10.1088/1009-1963/15/8/039
陈昌麒1, 朱 超2, 张镇顺3, 姜 伟4
Jiang Wei(姜伟)a) b)†, Cheung Chun-Shun(张镇顺)a), Chan Cheong-Ki(陈昌麒)c), and Zhu Chao(朱超)d)
摘要: The aim of this paper is to present a theoretical study of the aerosol penetration through an electret fibrous filter, using a numerical approach. The aerosol sizes considered in this study were in the submicron range, and in the numerical model, the conventional mechanical mechanisms (impaction, interception, diffusion and gravitationally settling) were taken into consideration along with the electrostatic mechanisms, including the Coulombic and dielectrophoretic effects. The aerosol penetration through an electret fibrous filter is heavily dependent on the aerosol penetration of a single fibre. The aerosol penetration through a single electret fibre under various filtration conditions was calculated. The effects of aerosol diameter, aerosol and fibre charge state, face velocity, packing density and aerosol dielectric constant on the aerosol penetration were investigated.
中图分类号: (Complex fluids and colloidal systems)