Numerical Simulation and Analysis of Velocity Field in Folding-Type Air Filters


Article Preview

In this paper we contrast the velocity fields of uniform and non-uniform porous filter media in folding-type air filters under different porosity conditions by numerical simulation. In addition, the non-uniformity of those velocity fields are measured and calculated. The results show that the non-uniformity of air flow velocity is related to pressure drop, and regarding the media whose porosity is above 95% (Δ>95%), an effective way to improve the velocity uniformity and reduce the pressure drop is to increase the porosity of filter media and make the media capture particles evenly.



Advanced Materials Research (Volumes 374-377)

Edited by:

Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du




Y. R. Wu et al., "Numerical Simulation and Analysis of Velocity Field in Folding-Type Air Filters", Advanced Materials Research, Vols. 374-377, pp. 1207-1211, 2012

Online since:

October 2011




[1] Hsu C T, Cheng P. Thermal Dispersion in a Porous Medium. Int. J. Heat Mass Transfer, 1990. 33(8): 1587-1597.


[2] Bear. J. Fluid dynamics in porous medium (in Chinese), edited by China Building Industry Press, 1983, 75-132.

[3] Fluent6. 1 User's guide, Volume 1 (2003), chapter6, Boundary conditions.

[4] Jean-Noel Baleo, Albert Subrenat, Pierre Le Cloirec. Numerical simulation of flows in air treatment devices using activated carbon cloths filters. Chemical Engineering Science, 2000, 55: 1807-1816.