Theoretical investigation on submicron particle penetration through circular tubes inside a porous medium

作     者：Yanrong Yu Yongwei Gao Yanming Kang Yanrong Yu;Yongwei Gao;Yanming Kang

作者机构：School of Environmental Science and EngineeringDonghua UniversityShanghai 201620China School of Physics and Electronic-Electrical EngineeringNingxia UniversityYinchuan 750021China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2022年第70卷第11期

页      面：55-63页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.51578121 11762019and 11662017) 

主　　题：Porous medium Penetration Submicron particle Circular tube Analytical solution 

摘      要：The analytical infinite series solution of submicron particle transport in a circular tube bounded by a porous wall,such as a pinhole,is determined under the slip velocity boundary condition,and the solution is verified by using the experimental data in the previous studies for the specific *** results show that particle penetration rate increases with the increase of the porous parameter,the axial pressure drop,and the pinhole radius,whereas it decreases with increasing the pinhole *** penetration rate of nano-particles are more sensitive to the variation of these ***,the differences between the penetrations of particles ranging from 0.3μm to 1μm are not evident because the diffusion becomes weak gradually in this size *** addition,a further comparison is performed between the analytical solution and the existing studies,and approximate expressions are presented for accurate calculation of particle penetration rate through pinholes appearing in porous materials including filter devices and masks.