[1]付海明,徐芳芳,李艳艳.纤维过滤介质渗透率及压力损失数值模拟[J].华侨大学学报(自然科学版),2012,33(5):535-542.[doi:10.11830/ISSN.1000-5013.2012.05.0535]
　FU Hai-ming,XU Fang-fang,LI Yan-yan.Numerical Simulation on permeability and Pressure Drop of Fibrous Filtration Media[J].Journal of Huaqiao University(Natural Science),2012,33(5):535-542.[doi:10.11830/ISSN.1000-5013.2012.05.0535]
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纤维过滤介质渗透率及压力损失数值模拟()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第33卷
期数:
2012年第5期
页码:
535-542
栏目:
出版日期:
2012-09-20

文章信息/Info

Title:
Numerical Simulation on permeability and Pressure Drop of Fibrous Filtration Media
文章编号:
1000-5013(2012)05-0535-08
作者:
付海明;  徐芳芳;  李艳艳
东华大学 环境科学与工程学院, 上海 201620
Author(s):
FU Hai-ming;  XU Fang-fang;  LI Yan-yan
College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
关键词:
纤维过滤介质;  渗透率;  压力损失;  数值模拟
Keywords:
fibrous filtration media;  permeability;  pressure drop;  numerical simulation
分类号:
TU834
DOI:
10.11830/ISSN.1000-5013.2012.05.0535
文献标志码:
A
摘要:
针对纤维过滤介质纤维杂乱无章分布的特性,采用计算机模拟生产接近真实过滤介质的随机排列的三维纤维微观结构,对其内部流场进行数值模拟,得出纤维过滤介质内部流场三维压力及速度分布曲线图.通过大量计算及回归分析,获得随机排列纤维过滤介质无因次压降和渗透率拟合关联式.研究结果表明:随着迎面风速的增大,过滤介质压力损失线性增加;过滤介质压降随着填充密度的增大而非线性增加;随机排列纤维过滤介质无因次压降的计算结果与Davies及Jackson的计算结果非常吻合.
Abstract:
The microstructure of the fibrous filtration media has a great influence on the fibrous filtration media filtration performance, three-dimensional microstructure of fibrous filtration media which arranged randomly simulated by computer in this paper, the influence of the fibrous filtration media microstructure on filter permeability and pressure drop were investigated. Dimensionless pressure drop correlation of randomly arranged fibrous filtration media was obtained. By fibrous medium simulation it can be known that fiber flow field distribution was not symmetry because the fibers were arranged randomly, filtration velocity was smaller near the fiber when air flowed through the fibers, the fluid velocity increased significantly between the fibers when the fiber distance between fibers was the large. Obvious vortex was formed in the fiber sparse areas. The results show that: the pressure drop of fibrous filtration media increased linearly with the face filtration velocity increasing; and pressure drop non-linear increased with the packing density increasing, dimensionless pressure drop calculation of randomly arranged fibrous filtration media was good agreement with the calculated results of Davies and Jackson.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2012-01-06
通信作者: 付海明(1962-),男,高级工程师,主要从事空气品质控制及过滤净化技术的研究.E-mail:fhm@dhu.edu.cn.
基金项目: 国家自然科学基金资助项目(51178094)
更新日期/Last Update: 2012-09-20