A Study on Nanoparticle Aerosol Filtration via Different Fibrous Filters by Using CFD Approach

作     者：Q.Wang B.Maze H.Vahedi Tafreshi B.Pourdeyhimi 

作者机构：Nonwovens Cooperative Research Center North Carolina State University Raleigh NC 27695-8301 Fiber and Polymer Science Program North Carolina State University Raleigh NC 27695-8301 Nonwovens Cooperative Research Center North Carolina State University Raleigh NC 27695-8301 

出 版 物：《Journal of Donghua University(English Edition)》 (东华大学学报（英文版）)

年 卷 期：2006年第23卷第5期

页      面：97-100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：Acknowledgement The current work is supported by the Nonwovens Cooperative Research Center. Their support is gratefully acknowledged 

主　　题：permeability CFD simulation nonwoven. 

摘      要：Fibrous filters such as nonwoven media are generally characterized by their collection efficiency and pressure drop. The traditional computational studies in this area typically based on unrealistic over-simplified geometries with the fibers placed in a lattice perpendicular to the flow. This paper describes the filter properties made of different Nonwoven materials by using Computational Fluid Dynamics （CFD） approach. In this study, for the first time, a virtual 3- D web is generated based on the fiber orientation information obtaining from analyzing microscopic images of both long-fiber and short-fiber nonwoven structures. Pressure drop and collection efflcicucy of our virtual filter are simulated and compared with the previous analytical and numerical models as well as experiment.