• 流动与传递 •

### 褶型纤维过滤介质压力损失的多尺寸模拟

1. 安徽工业大学建筑工程学院，安徽 马鞍山 243002
• 收稿日期:2019-05-17 修回日期:2019-06-21 出版日期:2020-02-22 发布日期:2020-02-19
• 通讯作者: 钱付平 fpingqian@163.com

### Multi-size simulation of pressure drop in pleated fiber filter media

Jingjing ZHU, Fuping QIAN*, Min WEI, Yunlong HAN, Jinli LU

1. School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, Anhui 243002, China
• Received:2019-05-17 Revised:2019-06-21 Online:2020-02-22 Published:2020-02-19
• Contact: QIAN Fu-Ping fpingqian@163.com

Abstract: Considering the structural characteristics of fibers, the arrangement of fibers and the number of layers of fibers, the micro-size model of pleated fibers filter media was established based on the control program written by MATLAB, and its solid volume fraction (?) of pleated fibers filter media was calculated. The mathematical correlation between filtration velocity (v) and pressure loss (Δp) of micro-size model was obtained by numerical simulation, and then the viscous drag coefficient (C1) was solved. Based on the above work, a macro-size model of pleated fiber filter media was established, and based on ? and C1 obtained by the micro-size simulation, the mathematical correlation between the face velocity (u) and Δp at macro-size was solved by numerical simulation method, and the mathematical correlation were compared with several empirical formulas. The results showed that the arrangement of the fibers and the thickness of the pleated fiber filter media had an effect on Δp, but had little effect on C1 and other properties. In addition, the properties of pleated fiber filter media obtained at micro-size can provide guidance for macro-size research, and the property parameters of macrostructure can be obtained by using the data obtained from the microstructures. The research results of this study had important theoretical and practical significance for expanding the research methods of fiber filter media and optimizing its structure.